 | Basement Plumbing Rough-In question |
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Question: I've posted this question to a couple of plumbing forums also but thought I'd see if anyone here could answer me too? Our builder put in our plumbing rough-in and I have two questions about what is the usual and customary way to do this. We were left with just the pipe stub sticking out of the concrete for the shower and toilet pipes The toilet pipe is 3" white plastic, PVC probably? There is no space around it to add the toilet flange? This seems like a stupid way to leave a rough-in if we have to bust up the concrete floor to put the flange in? Is this the customary way a basement rough-in is done on new construction? Is there a way to add the toilet flange without busting the concrete or raising the toilet? Also, I'm going to contact the builder because the distance from the toilet rough-in to the tub/shower drain is too close to meet the code of 15" clear space from the center of the toilet to the edge of a standard tub (the way the rough-in is supposed to be laid out. Finally in order to place the vent pipe inside the same wall running behind the toilet, it only leaves 11.5" of space to the back of the toilet and as I'm sure you know 12" is the required amount of space. I think we could squeeze a toilet in here, but the flange is an issue as is the distance from the shower/tub
Answer: There *is* a flange which will drop *inside* the 3" pipe. Makes for a reduced cross-section but they do work. The flange should sit on top of the finished concrete. For the clearance issue you might consider an offset flange. http://www.plumbingsupply.com/images/offset_closet_flanch.jpg This one fits on the outside of 3" pipe and offsets 1 1/2". Make 4 pluge cuts with an abrasive saw in the concrete and excavate around the pipe to accept the flange.
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