JGW
New Member
Hi, all. I'm renovating a bathroom and have to re-do the shower/tub plumbing as I'm replacing a two-handle set with a single handle mixing valve. When I opened up the wall I expected to find some pretty basic plumbing but instead found this (see attached picture). What are those extra stacks (for lack of a better word) for , and am I OK to tear it all out down to where the 1/2 inch pipes stub through the floor? Thanks in advance.