City water hookup leaks

Bobbo wrote:

wa8yxm wrote:

JimR 1 wrote:
When mine leaked it was some sand or crud that got in the valve on mine there is a stem inside that I push in against the pressure and that flushes the valve out.

But I have also replaced two

JimR

The "I have no clue where they got their brains from" folks will holler that "OH you will break it if you do that" (Not true) but here is a fact.. It's already broken.. You might fix it, or you might not but worst case is you don't fix it

You depressurize the system first. If you don't, there is a CHANCE that the ring washer will be pushed out of place. Not always, but sometimes. If you depressurize first, there is not enough force to push the ring washer out, but you still get water backflowing out of the valve.

Yes I was on tank water pump off. I discovered the leak when after filling the tank and removing the water hose that the pump would not quit running so I turned off the pump and went to look. Not sure what I had there for a plug, must have been a push in type no threads. The problem was some hard water, calcium, from the campground faucet went through the hose into the valve and I could see it sticking out the valve pushed the little pin and all was good.

Glad I caught because the campground had shut the water off after my fill cold night Dec 31st Bosque Birdwatchers RV Park, San Antonio NM.

JimR

If flushing the check valve doesn't fix it, a quick temporary fix is to just screw a garden hose plug into the fitting. If that's not on hand, an inline garden hose shut off valve or even a common 'Y' adapter with shut offs will work.

wa8yxm wrote:

JimR 1 wrote:
When mine leaked it was some sand or crud that got in the valve on mine there is a stem inside that I push in against the pressure and that flushes the valve out.

But I have also replaced two

JimR

The "I have no clue where they got their brains from" folks will holler that "OH you will break it if you do that" (Not true) but here is a fact.. It's already broken.. You might fix it, or you might not but worst case is you don't fix it

You depressurize the system first. If you don't, there is a CHANCE that the ring washer will be pushed out of place. Not always, but sometimes. If you depressurize first, there is not enough force to push the ring washer out, but you still get water backflowing out of the valve.

JimR 1 wrote:
When mine leaked it was some sand or crud that got in the valve on mine there is a stem inside that I push in against the pressure and that flushes the valve out.

But I have also replaced two

JimR

The "I have no clue where they got their brains from" folks will holler that "OH you will break it if you do that" (Not true) but here is a fact.. It's already broken.. You might fix it, or you might not but worst case is you don't fix it

When mine leaked it was some sand or crud that got in the valve on mine there is a stem inside that I push in against the pressure and that flushes the valve out.

But I have also replaced two

JimR

Backflow preventer valve may need cleaning or repair. See this YouTube video.

There is a one way valve just inside the city water hookup, actually it is part of the hose input. Inside the fitting is a one way valve that sometimes becomes dislodged, Most common after winterzing.
The part us not expensive, approx $10. Easy to replace, on the outside of the RV, remove the screws holding the inlet, pull out slightly and replace with the new. New caulking and done.


Ken

We we fill ours it drips for 5 or 10 minutes, thru the overflow vent I assume.