valve source question

[rickbecker]

In the service center one of the valves for filling the fresh water tank turns 90 degrees from normal to fill. On my 3150 RL when in the normal position, the valve is letting water leak by such that the fresh water tank will begin to overflow.


Can anyone suggest a source for these valves so I can replace it??

[Carl n Susan]

The more likely cause is a failed check valve in the water pump. There is shore water and pressure in the plumbing system which includes the water pump. There is a check valve in the water pump which prevents the shore water from flowing back towards the fresh water tank. Replace the check valve or the entire water pump to solve your problem.

[rickbecker]

thank you for reply and I will check this weekend

[AZ Traveler]

I agree with Carl.

[ChuckS]

Three screws on top to remove and gain access to the check valve Assy and clean it

https://youtu.be/DpFMTyuUcyI?si=7efvqv0AxMXELnU5

[Daryles]

One of our members drew this diagram of the convenience center.
This helps explain what Carl said.

[DutchmenSport]

Until you resolve the problem, fill your fresh water tank and use your on-board water pump. Disconnect the garden hose until you can get it fixed.

[Pathfinder75]

Try cycling water pump. Check valve may have something on check valve preventing it from sealing.
Disconnect city water and use pump to free flow water at sink or outside shower several times.
If lucky when you re-connect city water the check valve will now seal.

[firestation12]

Cleaned the CK valve on 2 occasions. The 3rd time I unscrewed the pex fitting on the pump discharge and inserted a brass check valve. I added a double female to the check valve to orient the check valve flow away from the pump. Re-install the PEX fitting that was previously unscrewed from the pump discharge.

[rickbecker]

Sorry I've taken so long to get to this. I replaced the pump (with check valve) rather than fool with the check valve and the problem persists. As I look at that great diagram someone provided, I see no other way for water to get into the fresh water tank other than past the fill valve.


Thoughts? And thanks again for the help!

[rickbecker]

Additionally - looking at the diagram on post 6, I hooked city water to the winterize connection and pressurized through that valve. Once again the fresh water tank filled. Does this not demonstrate that the system is "looping" past the city water connection valve?

[rickbecker]

Solved! I tried the answers offered up here as messing with that valve is a real pain with 3 lines hooked to it and buried in the middle of a bunch of plumbing that is not real flexible. Anyway, got the valve changed and all was well. Took it apart and a piece of the rotating part was broke off allowing to water to bypass seal.



To answer my original question, I found the valve at Walley World in Yuma, AZ. That store is pretty amazing and seems to have all things RV.