Forum Discussion

Marv_Hoag's avatar
Marv_Hoag
Explorer
Apr 19, 2015

water tank fill valve leaking?

I've been on the road for over 3 months and will not arrive home to determine my problem for another week. Inviting suggestions for me to think over as how to attack this problem. Noticed about 2 weeks ago while hooked up to city water my fresh water tank was spilling from the over flow outlet. My selection valve is a quarter turn handle on the equipment panel (not fun to get to). Valve in one position for city water the other position for tank fill. My thoughts are whatever type of valve this is, has to be leaking water into the tank while in the inside use position. Is there any other way for water to get into the tank from the tank output? If not it has to be on the fill side. Anyone one out there have this problem or wish to offer something for me to think on before I attack the problem in a week or so.

2000 Monaco Windsor
Class A
  • mccsix's avatar
    mccsix
    Explorer
    Apr 19, 2015
    Make sure you push the selector handle to it's limit. If you just put it on the mark for city water it can/will continue to trickle into the fresh water tank. Worked for me and a bunch of other people.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Apr 19, 2015
    Dutch_12078 wrote:
    Water could also be leaking back through the water pump check valve. Try disconnecting the inlet side of the pump (with the pump off) and see if there's any seepage from the outlet side. The inlet piping from the tank will leak of course, so be prepared to temporarily plug it.


    Correct..

    2 sources when you have a utility panel
    Either leaking thru 'fill' valve or back thru pump internal check valve
    Both are under pressure with city water turned on

    Suction side line on pump should NOT have any pressure/flow if check valve good/closed.
  • Dutch_12078's avatar
    Dutch_12078
    Explorer II
    Apr 19, 2015
    Water could also be leaking back through the water pump check valve. Try disconnecting the inlet side of the pump (with the pump off) and see if there's any seepage from the outlet side. The inlet piping from the tank will leak of course, so be prepared to temporarily plug it.

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