DIY Rough-In Plumbing for Slab Foundation | Couple installs plumbing for house build in country

[Music] what's up thanks for watching we're talking a little bit about our rough end plumbing before our foundation goes in um so um if you watch the other video on the septic you'll know that the septic kind of stubs in right here from this clean out pipe and then it goes right into the house right at the master bathroom and something i did kind of on a whim on the last minute change was i switched from all one sewage system meaning like black water gray water which means toilets showers sinks things like that to switch it and go separate systems as in one four inch pipe system just to treat the sewage which is your toilets right that go into the septic system and then a whole other system just for the gray water which is the smaller diameter pipe the two inch pipe um that we were trenching out this way outside the house and i don't have a plane yet of what that's going to do where it's going to go i need to research on how to treat it but hopefully that that right there will make the septic system that much more robust for the things that we needed to be robust for [Music] so [Music] [Applause] [Music] um so as you can see you can kind of see the two separate systems right now um the two inch the little pipe is the gray water uh system and obviously the large four inches is for the toilet um one thing i wanted to make sure i did was um vent the toilet the the black water system the four inch system because that my plan was to vent everything above the surface of the foundation but since i am separating the gray water in black water really the the black wire is only going to be connected to toilet so i had to create these additional vent pipes so from my understanding the reason you vent is to prevent like gas bubbles and nasty smells coming up through the plumbing because you got to think about it whenever you flush or whenever you drain water down a tube well there's air in that tube and that air's got to go somewhere and so that's why we create these vent pipes for the air to escape especially when you're doing you know you're draining toilets and your clothes wash or anything like that so that's from my understanding that's that's what's going on um and so i plumb that right to where an exterior piece of the wall will be and then hopefully when we get the framing up we can kind of connect all the vents above the ceiling and run them out of a single single chute at the top of the roof it's kind of my plan but yeah that's that's almost a must is p-traps for showers and tubs things like that sinks you can do the p-traps above the foundation and the wall so that's why we're not doing them in the ground so these guys are obviously draining into the floor so you got to do it below the surface um when you're putting those p-traps in and i'm sticking with two-inch pipe everywhere i think that's overkill for my for my research you can go with one and a half maybe one inch um but again i'm trying to just build this thing to handle whatever we throw at it so i've got two inch for gray water and four inch for black water down our our line of plumbing here from the master bathroom uh this plums right into um the island and the kitchen that's we're gonna have our sink for the kitchens and the islands so this will be the drain for it again p-trap will be above the foundation on this one uh and and one thing to keep in mind uh the kind of the golden rule when you're doing um sewage is everything drains downhill so make sure you run all your plumbing going downhill and you can kind of look that up on your level it's it's just where their bubble is slightly over over the first line there because you want everything to go down its normal path you want anything to slow up or level out so keep that in mind and then we're going to keep going we've actually already back filled this section in but the plumbing runs along this line and then it 45s right here and then it comes out right here and this is another kind of code thing when you're talking about plumbing and i don't know the specifics um but i do know when you're doing sewage drain you can't have anything greater than a 45 degree turn when you're bending things again that's just for flow so things don't get stopped up you they make 90 degree turns but they're kind of elongated you'll see some down here so whenever you're making turns you got to keep them at 45 degrees i'm not sure about the reg regulations on sinks and bass gray water i don't know but i stuck with it just to be safe so all these have 45 degree turns on them these two particular ones stubs are going up into our second floor so these will be going through a column in our entryway because we're planning on having a bathroom a full bathroom up there as well so again black water and grey water this brings us to the end of the plumbing system uh this is the um bedroom one and two's bathroom in between guest bathroom uh we have um four inch for the toilet vent for the toilet um going up the exterior wall this is the gray water pipe going to the sink and actually i didn't have to have a p-trap here but i was starting to run out of fittings and i know this is going to be a tight area so this sink has a p-trap in it underground which is a little overkill but again i was out of parts we made it work and then if you follow the four inch out we installed an additional clean out on this side of the slab so once everything gets closed up and the slabs pour and everything's framed if anything bad happens they can come in just from this this cap right here and run snakes and their little cameras and they can figure out what's going on and there's another one of these at the other end i think you've seen that so this is really handy they suggest at least two on the extreme sides of the system and then the last thing is the bathroom's um bathtub which is this guy right here again with the p trap so kind of the last thing i wanted to cover was um just be wary of wherever you start your plumbing that kind of we talked about earlier is that you have to have it have it going downhill so be wary where you started because where you end it you still want to be underneath the surface of the foundation and that that plumbing has to be going up and up and up and up so that might adjust how low you started off down by the septic system if i hope that makes sense because if you start it too high by the time you get to the other side of the house you're going to be sticking out the foundation out top off the top of the foundation so yeah the last thing i was going to mention is we did a little pipe for our fresh water coming into the house from the well i just trenched it about a foot outside the the form there to be trenched in later to be hooked up and then i have a pipe going up where a wall is going to be most people say that you want to bring in the fresh water inside an interior wall another exterior wall just for freezing sake um the further away from the the weather elements the better and then they also say anywhere from a three-quarter inch to a one inch pipe we used one inch again just trying to stick to the biggest and best to keep the pressure as high as we can um and then from here on when we get it framed we'll we'll take it and split it into the pec system to feed all of the fixtures going to all the appliances so yeah that's our video on a rough end plumbing and a little bit of fresh water there so i hope you enjoyed it thanks so much [Music] you

Channel: Dream it. Build it.

Views: 94,208

Keywords: plumbing, plumbing diy, rough in plumbing, house building, home building, slab foundation

Id: G3Buc2H2LNs

Length: 10min 17sec (617 seconds)

Published: Fri Jun 25 2021