horizontal drain

Hi, Is it possible (WA code allowance) to use the Double Fixture 3" Hub to be used on both shower and tub drainage? I like to have the side ends for shower and tub. The long straight end goes to the 3" drain pipe and the opposite used for cleanout. Edited: the fitting needs to be on...

Hi, first off, I'd like to thank this forum for all the plumbing advice I've read as a guest. I haven't been able to find an answer to this particular question so I finally joined. I am making a heat exchanger for my shower trap arm. I have a 2" section of copper drain pipe that I want to coil...

We are adding a restroom and an old warehouse in Seattle. Because part of the drain line has to go over a concrete footing it starts at its lowest point about 10 inches above floor level. There are two sinks and for each we are using a combo 2-in tee on its side, it is not possible to change...