I am in the process of finishing my basement and have a strange question. When you are running pipe horizontally within the walls (notched or through holes) which pipe runs above the other? Is the hot pipe on the top or the bottom?
Also another (similar question)... in this basement I have an existing stack which was installed during construction for the half bathroom. The builder placed a saniary tee at the height for a sink drain and then capped it off. This stack sits between the bathroom and where a wet bar will be. I want to use that stack (2" stack w/ 1 1/2" stub) to drain both of the sinks. Can I run the pipes between the two sinks with another tee in the middle and connect the combined waste into the existing san tee? The sinks would both be in 1 1/2" PVC.
Thanks for the help!