DIY Plumbing Basics: Guide for Homeowners

published on July 9, 2020

Hey guys it's Jeff from home renovationhere today and today I'm here to helpyou understand all about the plumbingbasics so you understand the system inyour house when you're renovating whatyou can do what you can fix how to getthings done right and how not to mess it

Up let's face it I think was NeilArmstrong was asked once he goes uhinterviewed what's how does it feel tobe done something so important as towalk on the moon and it goes that's notimportant

Plumbing plumbing is important rightthat's just the bottom line heunderstand the concept of somethingsimple executed poorly causes majorproblems and if you're like mosthomeowners you've had plumbing leaks

You've had problems with drains problemwith venting the water moving too slowthrough your lines and so in a lot ofcases it's a really simple fix and I'mgonna help you understand today all thethings that you need to do to solve all

Of these problems so we're gonna startoff with talking about all the differentfittings the plumbing water supplysystems the drain the venting how it'sall connected how to do a good jointwe're going to show you the layout for

How to run the plumbing for underneathyour concrete in your basement floorwe're going to show you how to make anaddition we're going to show you how tobring new venting in through the roofit's going to be very comprehensive okay

So there's going to be some time stampsin the description of this video so thatyou can get the information you needdown the road is more of a resource butfor right now let's just jump into thisand we'll talk about my favorite

Plumbing when it comes to water supplyof course as PEX yeah nope X has come along way recently with its reputationwhen it first came out everybody thoughtit was the devil and it cuts reallysimple like just with a pair of scissors

The idea is as you cut and you twist thepipe so you don't collapse the pipealright the connecting on these isabsolutely amazing all you have to do istake your fitting and they come ascouplings like this boom can get teased

Okay we can get end caps and it's likeLego for grown-ups really and with thisit's kind of fun to work with the houseagain you know when you're working withpecs the rule is this I always take yourline add your copper ring and yes resist

The temptation to buy the cheapercrimpers and the pinch together rings Iknow we actually have a video of that inour series somewhere but it is not thebest system okay it has a very highfailure rate right off the bat and so if

You're doing plumbing in your home youdon't want to have to turn on the waterdo a pressure test and have a leak rightaway this stuff will not fail if you doit right okay now I bought all thesetools at Home Depot and this is awesome

Because you can actually makeadjustments for how much pressure youwant to use so you'd basically slide thering over all right close that onto thering and you push until it makes aconnection on the handle you'll make

That distinctive sound okay that'sfitting right there it's not goinganywheretests have been done and they show thatthis joint done that way is better thanwelded copper okay it's better than

Using the torch even if you freeze thispipe it will expand and that joint willnot leak and the pipe will not break soif you're in northern climate there areadvantages to using picks that far awayany possibility that oh maybe having

Plastic pipe delivering your drinkingwater isn't a great idea and if you'rereally concerned about that then by yourdrinking water separately but this isawesome for plumbing now put that awayas I go I'm gonna try to clean the bench

Up so I can demonstrate some otherthings to you later once you've gotyours water supply so you got toremember there's a couple of otheroptions there's this fitting right hereand it's a pecs connection on the top

And here it's actually designed to besweat welded over copper okay so you canactually torch that on to existingcopper lines and convert to PEX allright the other thing you can do is youcan use a sharkbite and basically just

Push this on the copper end and then yourun your pecs on the other side it'slike a Chinese finger puzzlethese things are awesome and now they'reoffering a 25 year guarantee on themwhich is great because it takes a lot of

The fear out of the business now if youwant to see more about copper to PEXplumbing we've got a video link that youcan check the card up here it's just alittle I that shows up in the corner thescreen if you hover your mouse over that

Or you touch that on your touchscreenit'll open up all the links from thevideo that are available to you so thereyou go the only other thing you're gonnaneed is remember all of your watersupply lines should be an inch and a

Quarter from the front of a stud rightif it's too close to the stud stall oneof these plates over the water supplyline on the set so that when you'reattaching your drywall or your otherfixtures not accidentally gonna go

Through and puncture your waterline alot of cases when you drive a screw intoa piece of pecks it can take yearsbefore the screw deteriorates and allowsthe water to leak but when it happensbaby it really has come it comes up with

Violent attitude now now we got watersupply out of the way let's talk aboutour plumbing we're going to go throughthe fittings first okaylet's start with the basics we havewhat's called a tee now where I live we

Use ABS alright some of you are going touse CPC and or maybe other materialsaround the world I'm not familiar withbut the concepts are very similareverywhere you go you're gonna have alot of similarities so this is not

Designed to be like the the Bible ofplumbing but it should be enough to helpmost people out who are watching andunderstand what's going on so this is atee it's basically an intersection okayand you'll see that it has a slope built

Into the body and that is the directionthat things are moving okay so if youwant something to go down you don'tinstall it this way that will cause youproblems now this fitting is called thetee

This is called a why that should bepretty easy to wrap your mind around wealso have different angles okay you canbuy them in ninety degrees okay that's asweeping 90 the unique thing about thisis this is actually all rubber which can

Come in really handy all right if you'redoing a conversion from steel piping orcopper piping you can actually put thepipe in one in tighten up the ratchet onthis bad boy all right it's a universalboom done that's it that's plumbing okay

So you can connect pipes using somethinglike that for the rest of the time we'regonna be using ABS glue now this is wecall it glue it's actually a solvent soit doesn't glue anything together whatit does is melts the ABS and so then if

You glue the fitting and the pipe you'remelting both products and theneighborhood they bond together okay sowe've got a 45 degree angle it comesalso a 90 degree angle also comes inwhat's called a 45 Street difference

Being here is generally with fittingsyou need a piece of pipe to go fromfitting to fitting but in this case thepipe goes on the fitting no pipenecessary this is a three inch bushingthat goes down to a one and a half inch

Pipe okay so you can shove it in the endof a three inch fitting and convert toone and a half that can be really handyespecially if you're adding ventingsomewhere that doesn't have it alreadyokay

We'll get into some of the applicationsin a minute but the bushings also comefor two inch to one and a half all rightwhat this one does is it goes in the endof a two-inch pipe and allows theone-and-a-half to come in the other side

This is a really valuable little bushingespecially if you're doing scootershower systems a lot of the showerdrains that are out there are two inchpipe on the drain and in a lot ofregions we're still using one and a half

Inch pipe to supply the drain to theshower so you can use this fitting shoveit in the Schluter and then connect yourregular plumbing right into it that'llsave your bacon you can also get an endcap okay this is to glue a permanently

Onto a pipe that's disconnected it'sfunction and that works greatand we also have these things here letme just go through alright this iscalled the trap adapter now most of thisplumbing is going to be in the walls in

The floors under concrete but this isused underneath your sinks okay that'sactually inch and a half which isdesigned for kitchen they also come aninch and a quarter which is designed forbathroom vanities and drains there they

Have a different dimension so make sureyou get the right one don't just reachinto the box at the local Home Depot andgrab the fitting because it says so onthe box double check okay people graband throw them back it's all mixed up

And happens everyday every time I gothere I always got to stop and reallythink it was that gonna fit it drivesyou crazy now it comes to different waysthe trap adapter can come so that it itsits inside of fitting okay like that

Okay and they also have it made so thatit can go over top of pipe alright sodepending on the scenario you're dealingwith you might have to go one or theother and we'll talk more about that inthe in a minute other fitting options

These are amazingthis particular fitting option here isdesigned if you'll notice the gasket onthis side is really thick okay and thenthe other side is very thin and this gasthis this little connection here is

Designed it's connects two differentsizes of pipe and this is why when wetalk about the size of pipe for instancethis is inch and a halfall right now it's inch and a half onthe inside alright it's very important

To understand when you're doing withplumbing all of your modern fittingsthey're all labeled for the interior ofthe pipe not that well outside dimensionokay so when you grab something likethis this has three inch to three inch

What they're talking about is a standardABS pipe that's three inch on the insidethis will fit over top of the pipe tomake that connection it's very strangeso here we have what is this oneactually say this is a this is inch and

A half to inch and a half but you'llnotice that is for two different kindsof pipe so this one actually goes oninch and a half abs and you can stickinch and a half copper because the inchand a half copper has got the same

Dimension on the inside of the pipe butthe outside is very very thin andthis is made to connect copper to ABSnow in a lot of situations you won't seecopper in a lot of houses in the drainsystem anymore but if you buy an older

Home it was very common back in the 60sand 70s when we're back in the 50s and60s everybody in the world wasmanufacturing products to compete forthe plumbing market we had everything inthe world being thrown at us still today

You can open up some old homes and findplumbing go what the heck is that thingsthat look like fiberglass casts like foryour arm if you broke your bone I'veseen just about every material knownmankind try to be used for plumbing so

It's very important if you get stuck andyou're working on your house know thatthese fitting options are available youdon't have to go to a specialty storeyou can go to your local building storeand in most cases you can find something

That'll go from the old pipes that arein your house to the new standards okayand that is very handy while we'retalking about these types of fittingsthis is awesome because you can also getthem to go from four inch to three inch

Or three to two or two to one and a halfthey make these flexible couplings forall those situations these are reallyhandy when you're dealing withunderneath your concrete you've openedup your floor and you've got to go from

One fitting one pipe size to the nextand there's not a lot of room to workremember this kind of fitting the pipeends here from both sides so you need alot more room to maneuver you can't justcut up on the floor cut a pipe and stick

This in it's impossible so what you haveto do you have to take the pipe you takethe fitting and you got to get it overthe pipe you know one of the ways to dothis is to twist it as you push this isnot going to work for me either it's

Going to put make me look bad I bet thisis too tight hang on let me try this andif you want to make it really simple youcan use a lubricant like a littleVaseline or something like that becausethey are so exact

And generally you just twist them intoplace trust me you're gonna want to usethe lubricant like that's crazy butlisten it does fit it's just so perfectthat if you don't get the lubricant onthere all right yeah I got it I got it

Max how long am I gonna fight with thison camera all rightsend it down a couple of inches now butlisten if you put on the lubricant thenit'll help it'll slide over a lot easy Iwill need some butter or something this

Is crazy all right okay here we gomy point was you can slide it over thepipe all rightthen you can stick in something likethis you can cut little three inches ofpipe to go on okay yeah all right so you

Can cut your pipe to go on and then youslide this back up and then you make theconnection on both sides it's a lousyexample but hopefully you get the ideasee pipes buried underneath the stoneand ever in the concrete you cut a

Section you slide your fitting over youtake your your new fitting okayand you put it in place with the piecesof pipe and then you slide it over andyou screw it together no this is how wedid the plumbing in that video I'll put

The link in the box but we open up thefloor moved all the stone and then all Ihad to have the plumber do was come overand cut the pipe and stick everythingtogether and he was only there for halfan order so I think he put it together

In no time and it's a great DIY trickthat you can actually use for yourselfyou can open your own floor and move allof the stone out of the way and create aplace where the plumber can get his jobdone and heartbeat save yourself a lot

Of money we'll put that link in the cardas well now I can't get this off shouldhave brought the VaselineI don't haven't Rican Vaseline okay takethis fitting back to Home Depot get mymoney back if I can't get it out all

Right huh now whenever you're doingplumbing you have to bring support tothe pipe so what we use is all roundokay and it's just metal strapping comesin a box it's full of holes okay and youcan cut it wrap it around your pipe okay

And what you do is you can put this upby a stud where you wrap it around yourpipe and just throw a screw through thetwo holes into the framing and you canhang your plumbing anywhere inside yourcavity your joist cavity this is very

Important you don't support your pipesthat solvent joint that we talked aboutearlier that get with the glue it willbreak under pressure okay so if youcombine a bad slope without supportyou're gonna end up breaking joints and

Causing flex a couple of other productssomeone to show real quick and thenwe'll get into some of the technicalassemblies of how do you put thesesystems together and that is plumber'sputty if you're going to be doing

Plumbing on your own okay you're gonnaneed this little magic stuff here thisis basically it's a gasket that comes inPlato it's kind of reminds I'm playinglike a kid all rightand you can just run this out and create

Gaskets for yourself this is going to beimportant for different showersituations different sink situationskitchen sinks your vanities anywherewhere you're adding a drain intoporcelain you're gonna need a gasket

Like this all right so make sure youpick some of this up if you're doing awhole bathroom plumbers buddydon't leave home without it all right ofcourse last is teflon tape now teflontape we're gonna demonstrate a little

Later in the video but it's reallyimportant plumbing needs to do twothings and needs to seal up for waterand air because the drain also acts likea vent and when you're not using yourplumbing system you're not pulling fresh

Air down theso what happens is a sewer gases willback up through the system okay and soif you don't have all of your threadedconnections with teflon tape the gaseswill work its way into the room and it

Just stinks something horrible it's alsonot very safeso keep teflon tape handy you're gonnaneed to seal all your joints that have aplastic thread to thread situation andwe'll cover that again in a few minutes

Now I want to talk about these toolshere these are awesomeokay this is just a pipe cutter theycome in one and a half or two inchthey're my favorites because they werelike 20 bucks you can get really nice

Pipe cutters out there and if you're aplumber you probably use a moreexpensive tool but for the DIY er ifyou're gonna do a bathroom project thisstuff rocks so you can just get twoinches of pipe a little problem right

Problem solvedthat is amazingthat leads us to our next demonstrationwhen you deal with plumbing you'redealing with Building Code and if you'resmart you're getting your work inspected

Because the plumbing inspector will notonly say hey it's inspected and passedand so your house valuation will beprotected but you'll also be able to sayhey you did something terribly wronghere you got to fix that and most

Inspectors are going to be pretty muchgentlemen about it if you have a modicumof common sense and you can put yourplumbing together if you make a mistakethey'll explain what the mistake is soyou you can go fix it and then you just

Call them back for another trip it's notthe end of the world one of the mostcommon mistakes because there's a changein the plumbing code I'm gonna call itrecent we used to use this 90 for allkinds of situations where we were taking

A turn you know we're going onedirection won't take just put on a 90 noproblem but if this is a drain scenarioand it's on the flat and it's not likethis especially it's on the flat theywere running into too many problems with

With there's too much resistance there'sclogging there's issues going on so whatit is they change the code to make it amuch bigger sweep okay so what they wantyou to do is go like this now instead ofthis okay and what it does is it takes

That same turn over a much bigger areaall right okay now this is a one and ahalf inch ninety but it's a long sweepwe're gonna demonstrate that and theirplumbing we're gonna do a littleconnection of a whole bathroom for you

And I'll show you there between theninety short and long sweep but the ideais this if you're trusting on these tomake all of your terms you're gonna runinto trouble especially with aninspector they're gonna want to see two

45 put together with at least an inch ofpipe okay or you can buy the long elbowcircle alright so there's a ninety andthere's a long 90 so make sure you getthe right fitting when you're shoppingother things you're gonna need to know

What these are these are brilliantlythese are temporary caps so if you'redoing plumbing like I said when youconnect it to this main stack of thehouse you're connecting to the streetsewer or you're connecting to

Some pit or something like that andyou've got to protect the gases fromcoming back in what these are designedto do they slide over a lot easier thanthose fittings but they just pop inplace and they're temporary and I get

The orange ones because it's obviousokay every time I see an orange cap forme it means that it's not just a it'snot just an end cap it means the pipeit's attached to isn't glued in eitherall right if I've got a glued in pipe

Then generally I'll use the blue onesthat's my system you can use that if youlike the point is there are a lot ofsituations where the pipe will beconnected and and will have used thesolvent to connect them to the joint and

We'll put this on for sewer gasprotection right and then we'll cut thepipe later to add the fitting so there'stwo different functions it's good toknow what's what this is a good littletrick I'm going to teach right now when

You're buying your pipe at the store andyou're taking it home 3-inch pipe youcan stick the two-inch pipe in it andthen the one in half-inch pipe and guesswhat yep they all fit together okay andso if you put all of your links in pipe

Like that then it doesn't go Bowlin outof the back of the truckjust a thought we're at that time in thevideo we're gonna talk about theplumbing that's under your house okaythis is the plumbing that's under your

Floor four-inch it's massive right okayit's called the lateral and this runsfrom the house down the pipe right tothe city sewer now when it's going tocome into the house they throw one ofthese on so for two three okay if you

Can imagine this is all underneath yourconcrete layer laying it on dirt rocksbasica right now and then they add athree-inch piece of pipe usually a lottaller they'll throw on a test cap okayboom and then when they've got that in

Place then they pour their concrete allright and then after the concrete ispoured and it's ready to walk onplumbers they'll come by they'll takethe cap off they'll stick on one ofthese okay

Mm-hmm and to put in at ey this becomesthe stack if you're adding a stack inyour house you're opening up your flooryou're adding a stack you've got to havea T Y and then there's this fitting hereokay it's threaded and this actually

Goes in the fitting and the cap has arubber gasket on it all right if itdoesn't have a rubber gasket you've gotto use the teflon tape and this iscalled the clean up there's a huge oneinch square nut on it all right back in

The days when steel they used to havelead and oh my goodness but we stillhave these big square nuts this is nowwhat's gonna happen so now you've gotthis is your water if you're in yourbasement can you see this you cannot use

This to add plumbing to your houseokay resist the temptation to go ohgreat I can put in a wet bar this is notto be used for venting or drains this isto be used simply for those occasionswhere you get it I plug in your system

And the plumber can come on your houseand put a snake down there hole gofollow along your lateral pipe clean outthe debris or the tree roots all righthigh pressure hoses for that situationwhatever's going on outside the pipe

Outside the house all the way to thestreet no you might have your house set100 feet back from the road this pipeneeds to have access for plumbers to domaintenance on so do not use this to runplumbing okay if you need to add

Plumbing and you're in a basement yougot this scenario let's take another T Yright here okay cut the pipe put in atey use the rubber gasket situation ifyou have to but do not use this okayhere Jim over the head enough for that

Now I think what we're going to do iswe're gonna just go I've got a littledisplay setup and we're gonna connectthe plumbing run the pipes all togetherand show you how this gets done allright here we go

All right so what we're gonna do now isI'm gonna assemble a basic layout for abathroom okay I got a four by eightsheet of plywood here which is perfectbecause most bathrooms are like five byseven so we're gonna give you an idea of

What's going on this is gonna representour pipe coming into the area and ifyou're in a basement and you're underthe concrete let's just pretend we'vegot a great big hole open up here we seenothing but dirt and gravel around the

Edges and if you're upstairs and you'reworking between your floor this will bethe same situation only these pipes inmost cases have to be well drilledthrough the joist package but in a lotof cases you're not allowed to drill a

Three-inch hole for the pipe so it hasto be located strategically all right sofor the purpose of this example it's inthe basement underneath the concretefloor because I can't add this much pipefor a toilet without drilling through

All floor joists which would be illegalso don't do that try to set this up sothat like in most cases if you'rerenovating leave the toilet in the samelocation where it is you can move itfurther or longer along the same joist

Line but if you want to relocate it in adifferent part of the bathroom thenyou've got to also open up the ball andbring your stack instead of coming upover here you'd have to move it overhere because you can't drill through

Your floor joist okay now when I say youcan't do it it's it's not alwaysnecessarily the case new engineeredfloor joists packages allow you to makea 3-inch hole because it's builtdifferent but if you've got dimensional

Number as a rule no if you want tocontact the structural engineer theymight be able to design a system wherethey're laminating the joists for youand they'll say you can do it in thiscondition if you drill this much hole

But again you'd have to consult with aprofessional before you can do that it'sgenerally not acceptednow we take at ey to connect becausethis is a dream remember we're not doing90 s did you have to do the 45 angle

Nice and slowyou put on your big sweeping 90 okaythat's a huge sweeping 90 all rightthat's for the toilet and you take alittle bit of pipethey go from plans to flange and like I

Was talking about if this is concreteyou'd put a cover on this and then youdo it then you could take it off but wedid this in another video we actuallyput the flange on okay line up yourtoilet bowl perfect so that where your

Bolts are there at nine and three ifyou're looking at a clock if that's yourwall and you want to have it the centerthis should be 12 inches off the wallthat's a very standard depth 12 inchesof clearance from the wall to the center

Of the pipe means almost every toiletyou buy will fit comfortably if you putit in the wrong spot or you have a housethat the toilets in the wrong spot andit's too close to the wall there aretoilets you can buy that will work in

Only 10 inches of clearance but becausethey're not very common the price goesway up so if you're doing this yourselfmake sure you give yourself extra roomyou've been set up to twelve and a halfif you got enough space for it

Okay don't be afraid and in this casewhat I suggest is you take your tapconscrews put some 3-inch screws right inthe holes all rightand then backfill with your cement andthen the screws are already embedded

It's perfect you don't have to drill andscrew later now we got your toilet nowyou need another piece of pipe all rightmake sure one other thing every time youtee off the mainline stay within threefeet of the mainline okay and then you

Aren't gonna have problems with ventingif I use this toilet running I'm wentfive feet out you would have a lot ofproblem with with air and it'd bepulling air through the toilet okaybecause it's too long a piece of pipe

For that water to travel down the exactscience is not really worth talkingabout but if you're less than three feetfrom your main stack you don't need toadd a vent line if you go longer thanthat you got to add another one of these

Bad boys on here okay and then bringanother pipe up up into the roof andconnect it to the fresh air outside andvent that piece of pipe individually nowwe're gonna come down here now we'regonna tee off for the shower no exact

Locations really aren't working for usbut that's fineand we're gonna use 2-inch pipe rememberyou don't have to we could do this withone and a half inch and we could use thetwo inch bushing but since we're under

Concrete we're gonna go with two inchand we also need a p-trap now inplumbing every single fixture that'scoming connecting to this line has tohave a p-trap and that's basically thisit only looks like a pea if it's upside

DownI don't really get it why they call itPedro you stick this on all right andthen this has to be glued if this isunder concrete and you don't have accessto it it has to be all glued if it's

Underneath the floor and you don't haveaccess to it it's glued if it's in themain floor and you have an unfinishedbasement a lot of times you'll seethey'll use a different T trap that hasa an access port on it okay and if

You're gonna finish your ceiling andclose that up you have to add a trapdoorto that ceiling or replace that pea trapand put in something that's solid gluedokay whenever you don't have access tosomething it can't have a trapdoor on it

Alright that's a simple thing toremember but it's amazing how many timesyou'll see that mistake again for theshower you do this now this piece ofpipe here if you're running your showerif you know the exact height of this

Pipe that's great but what I do is Iusually take a couple of pieces of oneby four and I'll put a box around thepipe here okay for the shower just asmall box or six inches wide and I'llback fill in all the concrete up to that

Box okay and then when it's all done Ican take the screws out but the idea isthis this pipe here you don't want thatto be glued in when you're doing yourconcrete work you want to do yourconcrete work up to and the one like a

Six inch by six inch box laying in thegravel come up to that box okay thatgives you the ability to remove the pipefrom the pea trap hey and cut it to theexact size when you're doing your yourflange for your shower because that's

Very specific and that'll be done whenyou install your shower base now ifyou're looking to do a Schluter systemor if you have a new home you're gonnafind that this pipe is actually glued inplace and it's just coming out of the

Ground you'll just see concrete that'swhat you're gonna see they're nothelping us out here and that's a reallyquick way for them to do their job butit doesn't help you at allso now she looters got a new product

We're gonna link the the card to thatvideo it's just a quick overview and wedemonstrate how it works you cut thepipe and you can install your base drainanywhere now so that's really coolthis scenario here is still only drain

You still want to be less than threefeet from the main pipe okay if you'reunder concreteall right you definitely want to have itinstalled like this but if you're in afloor joist cavity and you don't have

Quite enough room and this does happenon occasion where the p-trap due to thenature of the plumbing of the locationand slope on the pipe it actually hangsbelow the floor joists then you canactually do this you can put it on a 45

All right and then you can add a 45fitting here and then put your pipe onthat way the code allows for you to beon a 45 degree angle so that you can putit between the joists package and youdon't have to build down your ceiling to

Accommodate that next thing you want todo when you're running your line is youwant to go from a 3 to a 2 inch bushingokay because you want to switch overfrom a 3 inch line to 2 inch pipebecause the only thing left in here is

The sink now you still want to havefresh air for venting all of thesefixtures so the way that we do that iswe use what's called a wet vent nowremember we're using 3-inch pipe as away to move solids for a toilet all

Right and water for our other fixturesbut we don't have to have the 3-inchpipe all the way through the plumbingsystem we could have interrupted thisand gone to a 3 to a 2 bushing way backhere even before the shower okay you

Have options now a typical fashion Iwent to the hardware store first timeit's been open in a while so we're justfiring through the bins and I grabbedthe wrong size so this doesn't actuallyfit in the 3-inch pipe it fits in a 4

And goes to a 2 same thing onlydifferent but for the purpose of myexample here I'm gonna just fake it ifyou've been watching my channel you knowI'm cheap I'm not actually gluing any ofthe fittings I'm just rough

Driving fitting them together todaybecause when I'm done I have no moreplumbing at this house I'm taking allthis stuff back from mine getting myrefund of Home Depotso thanks Home Depot for helping me by

Lending me all the fixtures here we goso this is what we're gonna call a wetvent and it's a two-inch pipe and I'llexplain how this works two-inch pipeallows my code for you to drain cleanclean water like a shower or sink and it

Still allows you to have be the ventingokay so as as the water flows throughyour shower and it's creating a vacuumin behind it and that's the situationthat most people make mistakes withtheir house they don't understand how

Air flows with the water remember if airif water is moving then something has tocome in behind that to fill up the voidso there is a vacuum that's created andyou have to have air everybody has ahouse you got a little black pipe

Sticking out of the roof somewherethat's the air intake for this systemokay so you have to maintain the properpipe size so that you can have the rightamount of air pulling through or you'regonna cause problems he creates vacuums

And back pressure slows things downwater will run away and leave the solidsin the pipe and then you get pluggingand clogs and then you're constantlycalling the plumber over to stake outyour line this is why so in this

Configuration once you get past thetoilet you can go down to two-inch pipeall right and then you want to use theirreally long 90 okay use the long 90you're gonna connect that now we'restill underneath the floor okay but

Usually that comes up to about where thefloor is and then you're gonna wantabout 18 to 20 inches from the floor tothe center of this now this fitting hereis a T 90 and it's allowed in thisscenario to bring the plumbing from the

Sink of the vanity into the wall righthere okay it's 2-inch one and a half oneand a half and whenever you see atwo-inch pipe coming out of the floor inthis situation like if you have a housewith a rough in you know that this is

Designed to be the wet vent okay youdon't just put an elbow in and bringyour sink here you've got to connect therest of this to the rest of thatso to understand the venting of thehouse we use three-inch pipe we're never

Removing solids with the toilet we use2-inch pipe for showers and vanities ifit's operating as a drain and a ventingsystem okay which is why I like to run atwo inch pipe to the shower even if it'sless than three feet away because it

Just helps to facilitate moving waterquickly and easily here we're going tobring two inch to the one and a halfwhere your vanity is and then finish offwith one and a half going all the way tothe roof and that's the wild part

Because a one and a half inch pipe in myregion is allowable by the code to haveup to ten fixtures attached to thisventing line so I can have a combinationof ten toilets showers and sinks on onepipe going up through the roof which is

Amazing because it's not a lot of pipebut if you don't do these thingsproperly you're gonna run into airproblems and then you're done you can'tjust run this into your attic you've gotto get it right to the fresh air outside

Okay now when you're all done werough-in you finish your wall you putyour cabinet in this pipe remember youdon't want it glued in okay you justwant to have it set there well there wego

Because you want to take the cap off cutit to the right size to attach yourp-trap all right boomnow the p-trap has got a threadedconnection here okay you want to putteflon tape on there when you make this

Connection because it has to bewatertight and protect you from gasesand it has the gonna go get my ring thatI dropped down the sink honey trap doorhere as well and so this is used you canactually drain the water out of this pea

Trap if you ever have to cut the lineand make connections or adjustments whenyou're renovating and that is superhandy yeah I have had this questionasked a lot of times people makecomments and there you say hey how do I

Know there's a pea trap under theconcrete it's a good questionI mean just the fact that the code saysit's supposed to be there doesn't meanit's necessarily going to be there sowhat you do here's this here's the

Secret take your test cap or if theyhave a glued cap that's fine cut thatoff okay take your flashlight or or yourcamera put on the flashlight feature andshine it in thereokay and if it's holding water it's a

P-trap if it's not holding water then goget yourself I don't know a good eightounce glass of water and pour it inthere and it should stay you should seeit resting in the pipe okay if the waterjust goes away and you don't see it

There is no pay trap that's the easiestway to find it okay so if you don't seewater add some if you still don't seewater you don't have a pay drip becausethe p-trap is always supposed to beright at the point before your pipe

Comes out of the concrete okay rememberthis is the pH app right here this iswhat pipe you're seeing let's say you'rein a situation now we've got a toiletroughed in we've got our sink rough theshower roughed in we've got our vent

Pipe venting is awesome when you'reputting in vent pipe you've got a littleflexibility if this is your drain nowyou can take this pipe has to comehigher than your fixture so your ventingalways has to come above your fixture

Before you do your turns okay so if youwanted to go around the room to go up tothe roof somewhere else you can but makesure your pipe is higher than thefixture so no matter what kind offlooding situation you got going on here

You're always going to be able to bringair to that it is not going to get filliself if you cut this too low and yoorastart running around the room and you'llsee this in older houses a lot the watercan actually back up from clogs right

Into the vent system and now you're notjust applying air to any other plumbingfixture as well that's the problem okaynow one last demonstration we're goingto show you how to run the ventingthrough your roof so if you're adding

New venting or you have an old house andthey just put it to the attic and theynever ran it through the roof or you'redoing an addition or adding anotherbathroom or you're installing a newmacerator unit we'll put that card in

The video as well because you can add abathroom anywhere in your house even ifyou don't have plumbing with that unitbut you've got addventing the fresh air so we're going toshow you how to do that and run it right

Through the roofso we put together a little mock roofhere for youso we can demonstrate how to cut it innow here's your one and a half inch pipeokay I'm just going all the way up into

The attic alright and what you want todo is when you get near the roof youwant to put on your one and a half tothree inch bushing and then you put onyour three inch pipe coupling becausethe bushing is the same size as the pipe

Alright and then you can put on a threeinch piece of pipe now that's a lot ofassembly but the point is this thesethings that you buy at Home Depot okayor you're building store are designed togo in the roof and this line right here

If you read the instructions carefulthis is designed for the 3-inch pipe toforce its way through in order to createa watertight seal okay I know it lookslike you're gonna run a two-inch pipethrough there but they're looking for

The 3-inch pipe amazing so what we do iswe'll crawl up on the roof and we'llfind the location where we want to runthe pipe it's best to drill the hole andinstall this first and then get intoyour attic and make the connection from

Inside because it's venting you can putas many elbows and fittings as you wantto to get it to the right place it'sonly moving air so it doesn't have thesame restriction as water you can go asmany tight little ninety fittings as you

Want and what you want to do is you wantto work it up underneath the shingle andright up to the right up to the top ofthis course line here okay and here'swhy this is the location that you wantnot down here not all on top okay you

Want to get underneath the waterdeflection system and put it right upagainst that sink that's the bestlocation for this this gives you theability you throw a couple of nails inand even have a little spots here where

The nails go okay and if you don't wantto see the shiny nails on the roof thenwhen you're done you can take you theblack roofing adhesive that's in thecaulking gun and you can put a dab itout on there actually we have a cocking

Video who actually demonstrates whichproduct that is you can watch that linkas well you nail this in place and thenyou have to have a hole so what you'regonna do is when you're on the roofslide it in position where you want it

Okay and you don't want your pipe comingout like that you want it coming upstraight up okay so set your pipe theregive it a couple of shots and it'llleave a dent right there in the roofthat's where it was right there it's not

Very visible on camera I don't think Ican definitely feel it okay and then youwant to take out your trusty little sawbattery-powered is great on a roof okayand we're gonna just cut a hole that'smore than big enough for this pipe

Aereo okayno no what you're gonna do is you'regonna take this up here under the waterdeflection system okay the next courseof shingles is gonna come right to abouthere and you'll see the weak spot on the

Roofs is right here so this is where youwant to get your your cocking yourceiling with your roofing cocking youwant to fill that gap right there reallybadly it's important now take all thosefittings from underneath okay and you

Push them through now because of thedemonstration I don't have enough roomI'm gonna try to wiggle this in herestick our pipe through okay now thebuilding code does not require this tobe perpendicular but you'll notice that

With this particular hole it's it's it'sso far high up here I can't maneuverthat pipe right without possibly goinghigher up on the roof there we go andthat's acceptable as well just trim yourshingle back all right that's the look

You gotta love it so a few nails justcut a hole you don't have to worry aboutthe strength of the roof either there'sa lumber every 16 inches on a roof andthen there's more than capable ofhandling the weight and when you see

Something like this you know you've gota hole in the roof so you're not gonnabe standing right next to it and puttingall your weight on there okay but that'show you bring that in now you don't doanything on top this just stays open

Okay trust me birds don't love this theywon't nester it stinks it's got thesewer gas coming out all the time andwhenever you flush a toilet or wash yourhands the Eric is pulled in here reallyquick okay and it follows the water and

Make sure that the water and everythingruns out really nice and gentle alrightnow there's two quick common mistakesthat I see a lot of DIY is doing and Ijust want to bring it to your attentionand that is this when you're putting in

Your pipe okay this is level that's badokay you don't want level pipealways wanted to have it drainingtowards the street so you don't want tohave it too aggressive you want it onone degree okay no that is about one

Inch every four feet that's the slopemeasure off your floor joist orsomething but you want to have a slowslope like this here's why imagine a bigball of toilet paper all right and yourpipe is flat comes down and it just gets

Stuck here sitting in water on bothsides and one if you've got too much ofa degree it comes down and the water itgoes faster than the toilet paper andthe toilet paper ends up being left okayand it sits there until the next time

And the next time and all it takes is acouple of occasions like that and you'vegot a clog and a plug and it's nasty ifyou're on one degree okay if it's a pipewas hollow I'd be able to show you abetter demonstration of it or the pipe

Was clear I can show you but one degreeslope the solids and the water all drainat the same rate so nothing is left inthe pipe it stays clean it's a veryimportant measurement that you've got totake into consideration so take your

Time and check your slope one inch overfour feet the second mistake that peopleuse make all the time sorry is they'reusing sharkbite fittings in situationswhere they don't have access to themlet's face it like I've seen this a lot

I've been in the store recently down inFlorida and they sell sharkbite fittingsthat are designed to be in the wallwhere your showerhead comes out I mean Icouldn't even believe that because theyyou're guaranteed that's buried in a

Wall right why are they making those I'mnot sure if your code is different butup here we got to have access buyyourself a spring door okaythese are awesome now I'm gonna need oneof these sooner or later on this job so

I'm just gonna open this up the way thisworks is you have this an 8 by 8 okay 8by 8 inch panel you need to cut a holein the drywall probably I'm going to say7 by 7okay so what happens is when you have

Your hole okay you're you you use thethe spring load enter and you run it upand you can slide and then youpushing the whole and sit it in placeand when you want to take it off it'sthe same thing okay make sense okay why

Wouldn't they're just a few bucks andyou can paint it to look like your wallit's not the end of the world most ofthe time if you're gonna have asharkbite connection you're going fromcopper to PEX it's in a wall next to the

Toilet or it's on the back inside acloset in the neighboring bedroom it'snot a big deal so if you want to usecopper to PEX your money to sharkbitefittings get yourself a trapdoor allright have access and every once a year

When you change the batteries on yoursmoke alarms just add it to the listjust have a quick peek see what's goingon in theremake sure it's still working fine andyou know it's good habitat because if

You ever do need to do any maintenanceon it then you all you have to do is popthe door open okay but if you don't havea door and you sell your house andsomebody else buys it and they start toget a drift at least they'll know where

To look okay now that is how weunderstand plumbing basics understandthat's just the basics there are a lotmore technical situations that a plumbercan get involved with but if you'redoing DIY plumbing that should get you

Pretty much out of the woods when itcomes to adding a bathroom in a basementor renovating your bathroom upstairs allright so if you learn anything today hitthe like button don't forget tosubscribe and turn on your bell for

Notifications all right and if you'vegot questions about plumbing then askthem in the comment section belowokay and don't forget if you're doing amajor project and you're in a littleover your head you need a little extra

Help consider joining our membershipprogram and we'll give you our email andthen we can correspond and hopefully beable to solve your problem and if youlike learning about tips and tricks andhow to do renovations at home then click

The link right here we've got a fewother videos where I did my bench serieswe're gonna call it I discuss all thetools and the tricks of the trade forvarious different types of renovationwork we'll see you again next time

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