Why won't my new shower and water pump turn off?
When the main water line is turned on, the shower has no way to turn off and the water pump runs continuously without building enough pressure to shut off automatically. This leaves people unable to control water flow or stop the pump without manually cutting power at the breaker.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Buying OEM cartridges instead of third-party alternativesDid this help you?
- 2Verifying cartridge orientation and notchesDid this help you?
- 3turning the pump on and off using the circuit breakerDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“once the main water line is turned on the shower seemingly has no way to turn off.”source ↗
“I’m looking for some help with a water pump that won’t shut off.”source ↗
“the pump kicks on at about 30 psi, and only rises to 40 psi and then just sits there and runs, until I turn it off at the breaker.”source ↗
“Valve to turn on toilet water won’t turn off but the water is not filling up in the toilet.”source ↗
“I can’t turn off the water, when I tried to open it sprayed water.”source ↗