When you wake up and see water dripping from your fresh water tank, you may worry that you have a leak and are due for an expensive repair. However, you may instead have a problem with your RV’s water pump check valve.
In most cases, the problem is easy to fix. So let’s take a closer look at how to fix your RV water pump check valve so you can continue to reminisce at the campground. Let’s dive in!
Fresh water tank filling up on its own? You may have a defective check valve
Motorhome owners are constantly fixing things. Motorhomes take a lot of abuse on the road, and their construction is not always of the best quality.
A common problem is that the fresh water tank fills up even though you didn’t put any water in it. This happens when the check valve that prevents city water from entering the fresh water tank is defective.
What does a check valve do on an RV water pump?
The check valve is located behind the city water connection. It allows city water to enter your RV’s plumbing system when you connect it to a water source.
It also prevents water from flowing into the fresh water tank. If the water constantly flows into the tank, it will overflow.
Where is the check valve on an RV water pump located?
In most RVs, there are three locations for check valves. One is located on the cold water inlet to the water heater, one is located on the city water inlet, and one is located on the outlet of the water pump.
The first check valve prevents cold water from mixing with hot water. The second check valve prevents water from entering the fresh water tank if you are using city water. Finally, the third prevents water from backflowing and spraying out of the city water inlet when the water pump is operating.