Question about RVs
The check valve on your pump is bad. You can either replace your pump since the check valve is internal, out you can add a check valve to the outlet side of your water pump. That's by far the cheapest solution. Pumps cost $60-$120 and a simple check valve cost only $6-$10 !
Posted on Mar 07, 2016
Have you tried opening the valves inside the unit while filling it bringing all the backflow air out of the line? I would try that as you are filling go inside the unit and turn the faucets on every one manually pushes the air out like a gravity thing no pump need if gravity, then turn the pump on after opening valves while filling first there is air in the lines somewhere push it out thats all.
Posted on Mar 07, 2016
Probable cause would be a leaking check valve in the pump.
On the RV the city water and discharge from the fresh water pump are tied together. When on city water the discharge of the pump will have city water pressure on it. If the internal check valve on the pump is leaking, water will flow through the pump backwards and into your fresh water tank.
Posted on Oct 28, 2015
There should be a second connection for a pressurized line to connect to.
The tank is not for pressurized lines, it is just a fill and the pump in you RV pressurizes it in the system.
Posted on Apr 14, 2015
It does exactly what it is supposed to do,shut off water when it is full
Posted on Apr 07, 2015
Testimonial: "The city water line is connected straight to the trailer for water. The holding tank is filled by water hose if there is no city connection, and then you run off the holding tank.When it is connected straight to city water, it should not fill up the fresh water tank.It has only recently started doing this."
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Posted on Jan 02, 2017
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