Basement Bath


Old 06-10-03, 07:11 PM
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Basement Bath

How do you secure the TB flange to a concrete floor? Is the waste pipe cut off flush with the concrete floor?

Rough-in plumbing consists of a waste pipe and another pipe for shower/tub plus a vertical pipe which I take to be the vent pipe.
Can a tee be put in the vent and run to a hand sink?
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Old 06-11-03, 04:27 AM
Mike Swearingen's Avatar
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What type of drain pipe is it?
If it's ABS black plastic or PVC white plastic, you can glue a flange to the toilet drain that fits inside of it (use the respective type of glue for each).
Use a masonry bit to drill anchor holes in the concrete to secure the flange through and to the top of the FINISHED floor. The thickness of the flange should be above the finished floor.
The shower/tub should have a trap in the concrete (pour water in it and look with a flashlight). The toilet will have a built-in trap, and you add a trap under the sink.
The vertical pipe should be 1.5" and is likely the drain for the sink. You just need to add a trap and connect to it. You will need a 1.25"-to-1.5" adapter.
If all was roughed-in at construction, each should already be properly vented. You're looking at the three drain pipes.
Good Luck!
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