water problem

[oldnewguy]

Have a 2013 3050s sunseeker, this weekend while hooked to city water, my freshwater tank filled. i know this is a problem that was in a thread before , just can not find it. should be a back flow valve stuck open or broken, just need to know location of valve. thanks in advance for a response

 

[rockfordroo]

The check valve is usually part of the pump. Replace pump ($$) or 1) find new parts for old pum, 2) add a 2nd check valve on the suction of the pump, or 3) add a ball valve on the suction of the pump. (Check valve if you use the FW tank a lot. Ball valve if you don't.)

 

[ShermanD]

It will be just after the water pump and before the fresh water system ties into the city water connection.

Here is a link to a typical RV plumbing diagram.

http://www.forestriverforums.com/forums/attachment.php?attachmentid=115233&d=1469457186

 

[Flybob]

Shut off city water
Make sure water pump is off
open faucet
turn on water pump
let water run for a minute
shut off faucet
wait until pump stops.
Shut off pump
turn on city water.

This should reset the back flow valve

 

[Witch Doctor]

X'S 2 on fly boys comment, I have used that about 3 different times, It seems that if my pump is on by mistake and I turn the city water on is when it happens to me, that's all I can figure out, but what Flyboy say's will fix it if you do not have a diaphragm problem....