Originally Posted by sherdep
Did you happen to change the water filter - depending on the filter - it will cause you to have nill to no water pressure
or like stated above about the check valve
Since you have NIL water pressure from BOTH city and pump my vote is with Sherdep. Look to your whole house water filter. Turn off all water and dump any pressure by opening a faucet and unscrew the filter housing. REMOVE the filter completely and reassemble without it.
Does this fix the problem?
Cheap filters from the home store may fit, but the tolerance is too tight and they clog quickly especially if you are hooked up to well water.
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