The Room
Everything Bathroom Plumbing Covers
One room, five systems working together.
A bathroom packs more plumbing into less space than anywhere else in the house: the toilet (supply, fill valve, flush valve, wax seal, drain), the sink and faucet (supply lines, shutoffs, pop-up drain), the shower or tub (valve, showerhead, tub drain, overflow), and the hidden network tying them together — supply branches in the walls, drain branches below the floor, and venting that keeps it all draining quietly.
That density is why bathroom problems cascade. A leaking shower valve doesn’t just drip — it soaks the wall cavity. A toilet with a failing wax seal doesn’t just rock — it rots the subfloor. A slow tub drain isn’t just annoying — it can signal a venting or branch-line issue affecting the whole bathroom group.
This page is the hub for bathroom fixtures and their connections. For a specific failed part anywhere in the house, see plumbing repair; for bathroom drains that keep clogging, drain cleaning; for hidden leaks behind bathroom walls, leak detection.