Originally Posted by Falcon900Guy
Exact same thing happened to me.
Cause? Already mentioned but its a valve in your water pump that is sticking and allowing the water to fill fresh water tank.
Two choices: Rebuild the pump or replace the pump. 2019 would already be 4 years old so if t were me, I wold just replace the pump.
I would also get one with at least 50-55 psi pressure.
There are other causes for the pump's check valve to leak such as high city water pressure with not using a regulator or using the pump while also using city water.
Debris is the most common culprit as many report after doing the oft mentioned cleaning procedure, things are OK.
No need to replace the pump for any of the things I mentioned. And even if the pump's check valve still sticks, an inline check valve or a manual valve added inline will remedy the problem way cheaper than a new pump.
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=110 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=106