Water Pump surges

[polingrobin]

Good morning. I have a 2020 Tuscany 45MX. My water holding tank is full. All faucet and valves are turned off. It is set to dry camping and my water pump keeps surging. I can turn a faucet on and water comes out, but with everything off it still keeps surging. Amy ideas why this may be happening? We’re taking a big trip in March and I want to get this figured out before we hit the road. Thank you in advance.

 

[ghnl]

The water pump never turns off with all faucets closed? Either the check valve in the pump is not holding pressure or there is a leak somewhere.

With a faucet open is the water flow normal & steady?