I m not sure which connection you have in your coach but it will have some sort of check valve and that could be plugged or faulty.
Rv water inlet not working.
Make sure the correct valves are open for city water.
I would trace your plumbing lines for any valves that may be shut.
The proper rv water pressure regulator location is between the water source and the freshwater hose.
Third is the filter for the incoming city water.
Attach the hose to the unit directly or you can use an elbow connector to make it easier to get connected and disconnected to the rv city water inlet.
If the water does not flow freely take a small gauge wire or coat hanger and push through the drain opening to eliminate any obstructions.
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The rv city water inlet is an easy.
If you have a city water regulator it might be faulty allot of times they will just plug up.
First turn off the water at the rv site hose bib and then disconnect your water hose from the spigot.
Once connected to the rv city water inlet.
A specialized rv drinking water hose is drinking water safe and made of materials approved by the national sanitation association which contains no toxins rubber or lead.
How do i remove an rv water pressure regulator.
The city water regulator if you have one is usually part of the city water hookup it s self.
Just recently the check valve on my city water inlet decided to act up allowing fresh water to exit the rv when the water pump was turned on.
Turn the water back on and see if there is plenty of pressure and flow.
This ensures the pressure is correct before it ever even enters the hose.
After thoroughly draining the tank flush the entire system from the water inlet all the way to the holding tank.
To flush use four parts vinegar mixed with two parts of water.
Don t let a bum check valve cut your stay in the boondocks short.
Also check the obivious.
Simply twist the regulator onto the spigot and connect the other side to the water hose.
On occasion the one way valve in the city water inlet on some rvs breaks and the pieces can block the water flow.