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Author:
Pipe runner (AZ)
Good morning plumbers. Have a potential job to add a bathroom. The homeowner has provided a rough sketch of the proposed lay out. My question is how you would go about roughing in the drains?
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There is a 3" ABS drain heading towards the existing bathrooms. I would wye off this line and head basically directly to the new bathroom from the side that says 111". I have crawled the house and there is plenty of room to do this job. So I worked for a plumber who said the best installation is usually the one with the least amount of fittings. I'm thinking I could use a 3" side inlet tee to capture the WC, the shower off the side inlet, and then drain the lav through the wall and vertical vent the toilet and shower. I'm thinking if I could have one single vent for this bathroom group it will make the top out that much easier.
Additionally...the homeowner wants a rain head shower along with the standard shower head. Any advice on this valve and diverter? Does anyone ever just rough in two valves one for each shower head?
thanks for any input. This forum has helped me grow as plumber.
Edited 2 times.
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Author:
North Carolina Plumber (NC)
A 2" vent in the wall between the shower and toilet, arm over and catch the lavatory, a 3 X 2 wye downstream of the toilet to catch the 2" vent, use a 2" combination to pick up the vent and drain shower trap in the back of the combination.
It's usually faster and less expensive just to use another faucet for the rainshower, ,although Delta does make a fairly inexpensive diverter. In that case I use copper up from the shower faucet to the diverter and tie 2 of the openings together for the rainshower, you don't want to plug any unused ports.
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Author:
sum (FL)
As far as the rain shower and the standard shower, I think you might ask the home owner what the intent is.
I know for some people it's a matter of preferences, like the husband wants standard basic shower head and the wife wants the rain shower, and they will either use one or the other. In that case it sounds more like a single pressure balance valve and a diverter setup.
But for some other people they may be thinking the husband and wife taking showers together, and want both shower heads running, while they may even have some "fun". If that's the case it sounds more like two thermostatic valve setup, but they may or may not have the volume/pressure to meet that demand or the hot water tank would run out before the fun begins. I have seen a Kohler rain shower head needing 10gpm!
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Author:
Pipe runner (AZ)
@ NCP: I'm going to later re-read what you wrote and try to draw up an isometric when my mind is clear. thanks!
@ Sum: great point about talking with the homeowner to see what they are looking for. Two in the shower? oh the imagery!
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Author:
hj (AZ)
That is the ONLY way I would pipe this bathroom.
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Author:
Pipe runner (AZ)
@ HJ: (1) Do you mean what North Carolina Plumber wrote concerning the underfloor rough in?
(2) what's your preference for running rain head? diverter or two separate valves.
I've roughed in a rain head before years ago now as an apprentice where I used a square brass plate mounted on a 2 x 6 with a hole drilled in....1/2 FIP on one side and 1/2 UPONOR PEX on the other side. I was probably fired by the time setting finish was ready so I never got to see how my rough in was. Remind me please how I mount this in the ceiling? what is the typical length of the rain head shower arm? I'll get this job if I come in with a good price. would love to have your email to discuss this off this site. As a new plumbing company bidding the jobs has been really tough part and landing them. Thanks NCP, Sum and HJ...plumber's helping plumbers brings a warm feeling to my heart.
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Author:
hj (AZ)
NO, I mean the way the original poster asked about how to pipe it. I would use a single valve and a "multi port" diverter.
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