: HELP!!!I am in the process of finishng my lower level. My house is new. The bath room is roughed in and I have water lines close. I am OK with running the water lines. BUT, I don't have clue on what needs to be done for the toilet and sink. Any help would be greatly appreciated.
: I am going to use the shower drain as the drain for a pedistal sink and I will be installing a one piece commode.

Mike,
Waste fittings below the flood level of the fixture.
Every fixture need a vent unless it is "wet-vented"
3" waste line for toilet
1-1/2" line for lav, (code lets you use 1-1/4" but who can find that size anyway in plastic pipes)