Doing plumbing surgery without cutting Sheetrock
When management blocks you from cutting Sheetrock or you are stuck dealing with 120 PSI water pressure and tight device placement like a Moen Flo, standard repairs turn into hours of awkward, restrictive surgery. These physical constraints and high-pressure conditions make routine installations frustratingly difficult and time-consuming.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Working around restrictions instead of making proper access cuts
- 2Placing a pressure-reducing valve (PRV) ahead of the device to reduce the water pressure to recommended levels
- 3Running the device or plumbing at higher pressures and risking system stress
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/Plumbing2 people · September 2026 – October 2026
“Just had to do surgery on a flange for 2 1/2 hours because management wouldn’t let me cut Sheetrock below.”source ↗
ShroomSpoonsOfDoom · r/Plumbing · 4 upvotes
Where this came up
People with this problem also raised
- 37Why does my new plumbing still have bad water pressure and risky joints?
- 9Busted a pipe trying to fix a drain
- 2Converting a bathtub to a shower with a 1 1/4 inch drain
- 5Why are plumber drain cleaning estimates so high?
- 3How do you get plumbing experience with no prior experience?
- 3Kitchen tap internal pipe disconnected with no slack