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kolias
08-31-04, 01:28 PM
I have a 30 ft x 31 ft basement with 8 ft clear height to u/s of joists. The exterior walls are concrete and I plan to divide this space for extra living space. I want to add a full bathroom here and there is a 4” black plastic drain pipe (stack) coming down along the concrete wall from one of the upstairs bathrooms. Just about flash with the concrete floor there is a capped “Y” on this pipe, I guess to serve as a clean out.

Assuming that I can connect my new toilet to this “Y”, it is not convenient because it points to the opposite direction then I want to have my new toilet. Also I can’t cut it off without breaking the concrete floor.

Since I have enough headroom, I could build a sub floor and have all new drain pipes under the sub floor or build a cavity wall and hide all pipes behind this wall. My questions:

1. How should I pipe the new bathtub drain, new sink and toilet to this 4” stack (pipe size & material)?
2. Any ideas as to how the connection to the 4” stack shall be made.
3. If I am not more than 6 feet away from the 4” stack, do I need to vent all new fixtures.

Another subject: All existing hot / cold water pipes are with a gray flexible plastic pipe. I worked before with copper & cast iron pipes but never worked with this new stuff. Any particular point to be aware off / careful

Thank you

DUNBAR PLUMBER
09-02-04, 10:20 PM
1. According to the plumbing codes in your state.

2. By means of mission no-hub couplings.

3. Yes. All fixtures must be vented according to your state codes.

Mike Swearingen
09-06-04, 07:01 AM
www.saniflo.com