Pressure slowly drops even with no water running. Checked for water leaks. None anywhere in system.

Probably a leaking checkvalve. Is your pump in the well or above ground?

Might also be a leaking flapper valve in a toilet which allows the toilet the constantly draw water to keep the bowl full.

Pressure slowly drops even with no water running. Checked for water leaks. None anywhere in system.

Well something's leaking in your system. Let's check and find out where. This can be done through the process of elimination. Shut the water off to the house and watch the gage. If it still drops the problem's on the pump side. If it holds steady then check the house for leaks.
If the problem's on the pump side I'd be giving a hard look at the foot/check valve or the suction line and if it's in the house a flapper leak in the toilets or a break in the main or a branch. Good luck and let me know what you find. Tom

Very good advice.



That's about it. What kind of pipe, plastic or galvanized? If galvanized, I am assuming there is a union you can undo?

Well something's leaking in your system. Let's check and find out where. This can be done through the process of elimination. Shut the water off to the house and watch the gage. If it still drops the problem's on the pump side. If it holds steady then check the house for leaks.
If the problem's on the pump side I'd be giving a hard look at the foot/check valve or the suction line and if it's in the house a flapper leak in the toilets or a break in the main or a branch. Good luck and let me know what you find. Tom

Pump side. Could hear water running through what appeared to be check valve (flomatic). Valve is located on pump side of gauge and switch from the tank. Pump is submersable type.


Pump side. Could hear water running through what appeared to be check valve (flomatic). Valve is located on pump side of gauge and switch from the tank. Pump is submersable type.

Anything special about changing valve besides turning off pump power and closing tank valve?