Onboard water system pumps water out the shore input

I agree with Dutch ...no need to cancel a trip or anything. Mine is so easy to replace ,I carry a spare all the time and have had to use it in the past.

The quick fix until you can replace the inlet, is just pick up either a screw in hose plug or an inline hose shut off valve at Walmart or a hardware store.

"gdbudlong".......The check valve should be just behind you're fresh/city water fill. It's there to do exactly what you're having an issue with. It closes the fresh water opening so that you're pump can build pressure and supply water to the rest of the coach.

Often, the valve gets debris in it and prevents it from closing completely. As stated above, sometimes it can be cleaned out or even whacked to get it to close. If not, you'll need a new one. They're inexpensive, just a pain to replace on some coaches.

x4 on replace city outlet. Apparently there is a rubber o ring that becomes dislodged. Some people have had some success repairing , but I think last time I replaced ours it was about a $15.00 part and quite easy to replace on our coach

John

Along with non-working tank gauges, everyone has this problem. Replace city water inlet.

donn0128 wrote:
Bad check valve in the city water inlet

X2. We just had the same problem. Easy to replace.

Bad check valve in the city water inlet

Why would you turn on the pump when connected to water? The pressure from the water connection means you don't need the pump.