City water inlet

[Mstone6453]

While camping yesterday I found water coming out my fresh water inlet. Thank was empty when we arrived. I drained fresh, then turned city water hose back on and a little while later once again fresh tank wash pushing out water. 2017 Micro Lite 23fb. If pump valve is problem, can I get to it. I believe it is behind toilet in wall. I live in Florida so had not been winterized and this problem just arrived after a week of camping with no problem. Thanks for any help.

[NavyLCDR]

If you can't get to the pump itself (because the check valve is built in to the pump), can you get to the suction or discharge line to/from the pump? You can put an inline check valve in one of those lines as long as it is before the tee where the city water connects to the rest of the plumbing.

[bikendan]

Originally Posted by Mstone6453

While camping yesterday I found water coming out my fresh water inlet. Thank was empty when we arrived. I drained fresh, then turned city water hose back on and a little while later once again fresh tank wash pushing out water. 2017 Micro Lite 23fb. If pump valve is problem, can I get to it. I believe it is behind toilet in wall. I live in Florida so had not been winterized and this problem just arrived after a week of camping with no problem. Thanks for any help.

This is one of the most common issues on the Forum, the Stuck Check Valve.
There are literally thousands of threads about this problem.
A quick search will get you weeks of reading.

[Kirk S]

Usually connecting to a pressurized water source and leaving the pump on can cause the check valve to stick.

It is also the way many people unstick the check valve.

1. Connect to pressurized potable water source.
2. Turn pump on and run it.
3. While pump is running, disconnect pressurized water source.
4. Turn off pump and release water pressure by gently pressing in on the city water check valve located at the hose connection and hope the check valve resets.
5. Reconnect pressurized water source and see if the tank still fills through the pump.
It may take a few tries. Good luck.