City water issue

Matilda2xhr
Matilda2xhr Member Posts: 6
in Heating/Plumbing & Winterizing
Hello, when I set my water to City Water mode and turn on the water, it immediately flows out via the overflow tube.  Anyone experience this and have idea what the problem is?  Thanks!

Comments

  • Pintoplumber
    Pintoplumber Member Posts: 182
    It’s always a good idea to post your year and model number.
    2016 320 CS-S  1954 Ford F100  2017 Chevy suburban  2023 Chevy Silverado 1500
  • Sharon_is_SAM
    Sharon_is_SAM Member Posts: 10,035
    if you mean, the fresh water tank overflow tube, the check valve in the pump may have failed allowing water to enter and fill the fresh water tank.
    Sharon / 2017 T@B CSS / 2015 Toyota Sienna Minivan / Westlake, Ohio
  • Matilda2xhr
    Matilda2xhr Member Posts: 6
    Thank you both!  By the way, it's a 2023 320S. 
  • Yoshi_TAB
    Yoshi_TAB Member Posts: 583
    Hi, Here is a thread with a similar issue that is worth reviewing.

    TAB 320S BD City Water overflowing
    2025 360 CS 
    2021 TAB 320 BD (w/new owner having fun)
    2021 Jeep Grand Cherokee
    Southern Maryland
  • pthomas745
    pthomas745 Administrator, Moderator Posts: 4,593
    Look under the trailer and find the exact spot or drain where the water is coming from.
    If you are not using a water pressure regulator on city water, you may have "tripped" the Famous Yellow Flapper valve, which you can find under the driver's side bench down near the Alde.  If you are using a pressure regulator, the yellow valve may have just been left open.  Look at the link posted by Yoshi that has pictures and descriptions on what to look for.

    2017 Outback
    Towed by 2014 Touareg TDi
  • Matilda2xhr
    Matilda2xhr Member Posts: 6
    THANK YOU EVERYONE!  Problem resolved....it was the "famous yellow flapper." Appreciate everyone's input. 

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