Forum Discussion

philh's avatar
philh
Explorer III
May 04, 2019

Continuing On-Board Pump Issue

Dealer story they cleaned out the inlet filter was as I thought BS. I can now blow into the tank through the winterizing tube, but it is not as free flowing as I would expect it to be.

When running the pump pulling water from the tank, the whole system shakes and vibrates and is flow limited. Pulling water from a bucket using the winterizing tube, it's quiet and develops good flow.

Does anybody know how the water tank nipple is constructed and/or have a suggestion on how to clear the line out?

9 Replies

  • CA_Traveler's avatar
    CA_Traveler
    Explorer III
    May 04, 2019
    Connect hoses to the input and output pump connections. If the problem still occurs rebuild or replace the pump.

    What you've posted might also suggest an intermittent pump problem - ie did and now doesn't work on the winterize tube.
  • philh's avatar
    philh
    Explorer III
    May 04, 2019
    Valve on winterizing tube and valve on inlet line allow me to blow into the tank.

    Ran some water through the winterizing tube today, and it also shakes really bad. This is a new development, and before it was fine.

    Checked the pump screen and it's clean.
  • CA_Traveler's avatar
    CA_Traveler
    Explorer III
    May 04, 2019
    K Charles wrote:
    How can you blow into the tank from the winterizing tube? It goes from the tank to the pump or the winterizing tube to the pump, that's all.
    My winterizing tube goes to the pump intake or the tank depending upon valve settings. So I can blow into the tank if desired.
  • wnjj's avatar
    wnjj
    Explorer II
    May 04, 2019
    K Charles wrote:
    How can you blow into the tank from the winterizing tube? It goes from the tank to the pump or the winterizing tube to the pump, that's all.

    Maybe it’s 2 one-way values instead of a 2-way? Then you could open them both.
  • K_Charles's avatar
    K_Charles
    Explorer
    May 04, 2019
    How can you blow into the tank from the winterizing tube? It goes from the tank to the pump or the winterizing tube to the pump, that's all.
  • Lynnmor's avatar
    Lynnmor
    Explorer II
    May 04, 2019
    philh wrote:


    Does anybody know how the water tank nipple is constructed and/or have a suggestion on how to clear the line out?


    Many are just screwed in, just remove hose and unscrew, then remove debris. Be careful when tightening, it is just plastic and can't be made much more than finger tight.
  • midnightsadie's avatar
    midnightsadie
    Explorer II
    May 04, 2019
    might check the tank vent, you could be trying to pull a vacuum if the vent is clogged.next time call a local rv tech,there smarter than the burger king mech at the dealer. and they come to you.

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