Open the handle of the temperature and pressure valve until water stops.
Rv water heater check valve diagram.
On my 2004 winnebago sightseer the check valves are screwed right into the water heater inlet and outlet.
Having a check valve at the cold inlet to the heater also prevents mineral deposits and residue from backing into the cold system from inside the water heater.
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.
More on that in a moment with the new anode installed you are now ready to remove and replace that noisy check valve.
In this video we will explain how to operate them and what they do.
For those just entering the rv lifestyle there is a check valve behind your city water hook up.
The water heater by pass system is used to separate the water heater from the rv s plumbing system.
But to be safe it might be wise to reinstall one when you get a chance.
Turn off the water heater and let the water cool down.
Rv hot water heater check valve.
Your rv plumbing system needs to separate itself between grey and black waste and water storage or constant city supply remember an rv is designed and built to.
Or get creative if you can t.
As water is pushed through the water lines some of that water is forced into the water heater s tank.
As the water warms it rises to the top of the tank.
When the by pass system is used it takes the cold water going.
This is where it got fun.
Most rv water heaters use 1 2 male to male check valves.
Most rv manufactures today install water heater by pass systems on the rvs they sell.
Water comes in from the city pressurizes everything including your water heater goes down a common drain and away from you to a city sewer disposal plant or your own septic system.
Inspect yours closely to ensure you find the right replacement part.
Open a faucet to release pressure that is inside.
See here for a diagram i drew showing the diverter winterizing valve and the two check valves.
Remove the screen that s attached to the water hook up.
This needs some anti freeze too.
Your water pump should be off before adding the anti freeze.
Close the valve then close the faucet finally turn the water back on.
They look like brass nipples maybe 1 1 2 to 2 inches long.
As long as you flush the water heater out once or twice a year this too shouldn t be a problem.
Turn off the water supply.
If you look at the rv plumbing diagram it can be placed anywhere on the hot orange or cold blue lines.
Are you confused by the bypass valves on the back of your water heater.
The by pass system can be used to drain the water heater and to winterize the rv water system.
Rv water heaters are powered by propane electricity or both.
