Holding tank sensor

Discussion in 'Sport Yachts/Yachts' started by ric992, May 26, 2022.

  1. ric992

    ric992 Member

    Apr 5, 2021
    Miami Beach
    2007 Sundancer 48
    Cummins QSC 8.3
    Mine is no longer showing the level...not good right. I'm wondering where to get part and how to replace. Anyone else has had this issue?
  2. bbwhitejr

    bbwhitejr Well-Known Member SILVER Sponsor

    Apr 14, 2013
    Lake Lanier GA
    2003 420DA, 6CTAs
    Start with pulling the sensors and cleaning. There are small floats on the end of the plastic rods that move very little to activate the lights. There is likely a screw in cap with wires going into it on top of your tank. There is a plug. Unplug it, unscrew the cap, and the sensors are on plastic rods attached to that cap. Pull them out and clean them. The other option is to change to Zaal NoFlex Digestor. No lights worked on the 420DA we have now until about 4 months ago. Started with the digestor when we bought the boat 14 months earlier, now all work. Not a bad job pulling and cleaning the though and faster results.

    MonacoMike and Chris-380 like this.

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