I've got a two story house with a separate apartment on the upper level. I am in the process of remodeling my unit and have discovered a shattered cast iron elbow in the drain system for the apartment upstairs. I plan to replace the all of the cast iron (vents will remain cast with the new pvc...

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.