Typically there are three check valves in the fresh water system.
Rv hot water heater check valve.
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The first step to replacing the check valve is to turn off the water supply and drain your water heater.
Your water pump should be off before adding the anti freeze.
For those just entering the rv lifestyle there is a check valve behind your city water hook up.
If you are a lance truck camper trailer owner looking fo replace the plastic inlet and outlet fittings on your hot water tank before or after in my case they crack and break this is the correct one to purchase.
It s possible a fitting or one of the check valves may have ruptured cracked or otherwise been rendered faulty.
It s there to prevent hot water from migrating back into the cold water system.
This needs some anti freeze too.
The check valve on your rv water heater keeps the hot water flowing in one direction out of the heater while preventing the back flow of any water from your plumbing to enter back in.
Get it as soon as thu oct 1.
A faulty check valve at the hot outlet could also reduce minimize or prevent adequate pressure and flow from reaching the hot faucets.
How to replace rv water heater check valve.
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The check valve s you may have two however are located on the back of the water heater accessed from inside the coach.
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It has the check valve built in with an arrow indicating direction of flow.
One at the city water inlet to prevent pump pressure from forcing water out the entry one at the outlet of the water pump to prevent city pressure from backing through the pump and filling the water tank and one at the cold inlet to the water heater.
Some of the cheaper plastic check valves fail at a higher rate than the brass valves.
Rv hot water heater check valve the check valve line is where the rv and the city water first meet.