Hi There. This should be a fairly simple one. I'm putting a standing shower stall in my basement washroom but don't have rough-in for a shower. The rough-in for the toilet and lavatory are there, however. The lavatory drain is 1 1/2" but turns into 2" about 8" above the concrete. Because I am...

We are installing an oversize double shower 5x6 ft with 2 separate shower, body sprays, both systems will be feed by separate 1/2 inch feeds from the 3/4 inch main. Will a 2 inch drain be sufficient or will the drain size need to be 3 inch? The drain is about 2 feet from the main 4 inch waste...

Do residential codes typically specify 1 1/2 inch tub and 2 inch shower drains (i.e. smaller for tub than for shower)? My plumber is telling me they are different in my town... Lafayette CA. Can't lay my hands on the local code quickly.

Remodeling kitchen... Kitchen sink we want has 3-3/4" drain hole, although most sinks appear to have a standard 3-1/2" drain hole. Our garbage disposal documentation doesn't state the drain hole size, although current sink appears to be 3-1/2" drain hole... Garbage disposal is a Badger 1...

How appropriate and adequate is 3" PVC drain for a toilet? It would solve the current issue I have with a ridge from trying to mate 4" PVC to cast iron. I could slip the 3" pvc right into the main stack and avoid the butting of PVC and cast iron. I do see that most PVC toilet goods come in both...