Quote:
Originally Posted by javadog
Turn off the water supply to the house, where the water line comes into the house, if you have a valve there, or at the meter.
I would remove the sheet rock under the sink first, to investigate.
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No meter, I'm on a well/pump - I've turned off power to the pump and ran the bathtub for 10 minutes to try to reduce pressure/available water but it hasn't seemed to help. No valve to access that I'm aware of, other than at the water heater (to disconnect it) and the typical under-sink last-3-feet valves (all of which are closed under there)