Water leaking out of the wall during a shower
Water emerges from multiple locations on the first floor beneath a tub whenever someone takes a shower, often caused by a short, improper CPVC pipe connection. This sudden leak stops normal bathroom use and requires inspecting and repairing the plumbing behind the wall.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Checking for a clogged AC condensate line in the attic
- 2Inspecting for a roof leak
- 3Looking into HVAC system condensate overflow or sweating ducts
- 4Using plumbers putty around the pipe hole to block water
- 5Using a sharkbite cap to cap the pipe temporarily
- 6Looking for a slip fit tub spout design where the o-ring sits further back
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/HomeMaintenance1 person · September 2026
“Anyone have any ideas for what water seems to be coming out of the wall at a few different places?”source ↗
the-walkman8 · r/HomeMaintenance · 14 upvotes
r/Plumbing1 person · September 2026