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It's not a pressure issue, but a volume issue. If you're on city water, then a water service from the meter to the house in 1"or 3/4" depending on the distance is in order. The main line under the house should be 3/4 and the branches will be 1/2. If it's on a community system, a pressure tank won't help, a jet pump would be the answer. But until you solve ...


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Option 1 - the valve (rarely operated) broke when operated and is not opening. Option 2 - deposits, disturbed by closing the valve and draining the plumbing, have plugged the pipes. For option 2, open whatever valves are nearest the valve, or open up unions and flush out whatever glop may be there if ANY water flows - and/or run a stiff wire into the pipe ...


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Pressure Switch I've never seen a "safety cut-off" on a pressure system before, but typically the switching is done by a single box (known as a "pressure switch"). Pretty much all of them (at least from the last ~20 years) look something like this: The large nut is used to control the pressure (both cut-in, and cut-out) and the small one controls the ...



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