It could be a bad fitting bad connection cracked water line crack in the hot water tank water valve on rear of toilet leaking etc.
Rv city water connection check valve leaking.
In many cases a break or leak in an rv water supply line is often a literal snap to repair.
Crawford overton august 27.
For those just entering the rv lifestyle there is a check valve behind your city water hook up.
There is a one way check valve inside of the water pump and this often gets dislodged and stuck open.
Often times that valve will leak allowing city water into the tank.
You can do this by turning the water down but not off.
Inside is a plastic check valve plunger a spring retaining clip and small rubber o ring.
If turning the water down makes the leaking stop and still allows for adequate water pressure inside the rv this was likely your problem and turning the pressure down is a great temporary solution.
Hello janelle you would have to check all of the plumbing in that area.
Sometimes the little ball gets gummed up and doesn t seat correctly.
With the pump off you may be able to reseat it by pressing the ball in slightly and letting it snap back a few times.
I figured what was happening is the check valve was leaking due to a dislodged worn or damaged o ring.
When this happens water from the city water connection can flow backwards through the pump and into the freshwater tank.
Sure enough once i got the.
Customer service january 4th 2019.
Pex stands for cross linked polyethylene.
First you ll want to check that the water pressure isn t too high.
They are not buried inside walls and are usually accessible for easy repair.
The valve is designed to let pressured city water enter the rv s plumbing system when hooked to a charged hose bib via your water hose in an rv park and prevent the water pump from pumping water out of your potable water tank onto the ground when not hooked to a charged hose bib.
That s because the water lines in most rvs are plastic pex pipe.