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4788 Aft Head-gctid820089

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    4788 Aft Head-gctid820089

    The aft head in my 4788 is not pumping water in. The pump pumps the water out just fine, but all I get is a trickle in. I know there is a relay that open the intake, but I don't know where it is or where to buy a new one if I need it. The boat is a 1994. Does anyone know where the relay is and where to buy one.

    Thanks,

    Al

    #2
    What type of head? Par?
    1989 26' then 1994 32' now 2001 39'

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      #3
      Did you recently replace the original poop shooter? If you did you likely installed the new one upside down. The maserator/pump has clearly marked in and out connections. I learned the hard way.
      Started boating 1965
      Bayliners owned: 26 Victoria, 28 Bounty, 32, 38, and 47 since 1996

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        #4
        Thanks, but the head is a Jabsco and has worked fine for years. I looked under the sink and there is no solenoid. Just a metal loop that goes above the water line. It just seems like I can't get it to prime. I do have a repair kit and will look at the impeller next.

        Al

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          #5
          Sounds like the vented loop clogged at the tip or if it has a solinod it is not closing
          Mark
          USCG OUPV
          1990 4588
          Carlsbad, CA

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            #6
            "adavis" post=820089 wrote:
            The aft head in my 4788 is not pumping water in. The pump pumps the water out just fine, but all I get is a trickle in. I know there is a relay that open the intake, but I don't know where it is or where to buy a new one if I need it. The boat is a 1994. Does anyone know where the relay is and where to buy one.

            Thanks,

            Al
            is the thru hull valve open, behind the sliders in the hallway? On our boat once wife grabbed vacuum hose out of there and accidently closed a valve.
            Started boating 1965
            Bayliners owned: 26 Victoria, 28 Bounty, 32, 38, and 47 since 1996

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