A recirc system puts both sinks on the same circuit (loop) and not on separate runs, right? And the two sinks are a few feet apart, right? Then how can it take an extra minute? Weird.Originally Posted by builder10
You can probe into a drywall ceiling without ripping it apart. Start with swizzel sticks, move up to shish kebab sticks, and then graduate up to a few drilled holes. The biggest hole is for your eyeball and the other holes are to let light in.
You'll be able to figure out what pipes are up there and patch up with plaster in no time.