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hogbob's avatar
hogbob
Explorer
Oct 17, 2016

5th wheel tank fill

Hello
I have A Cyclone 5th wheel. The water fill only has two positions winterized and water inlet but it keeps filling the tank and leaking out the overflow. I am helping a friend that just bought this. Thank you for any help KENNY.

3 Replies

  • ways fresh water tank get filled:
    1) Via FILL valve at water panel.....valve not closed/leaking thru (if you have one)Exercise valve back/forth or replace bad valve
    2) Via pump internal check valve...just a diaphragm that can get hung open with debris/stuff from tank.

    Run pump using the water from fresh water tank....flush out pump by using it.
    Then after using tank.....swap to city water and check if still back-flowing thru pump (disconnect suction line at pump and see of water flows out of pump)

    If still leaking......install an 1/2" in-line check valve in suction line (Shurflo has them....$10 or so----pump still good)
  • His pump check valve is stuck. Search this forum. Wish I wasnt driving now to have more time for guidance.

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