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Post 46 II Heads

Discussion in 'Post Yacht' started by jacks88, Feb 6, 2019.

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  1. jacks88

    jacks88 New Member

    Joined:
    Aug 6, 2015
    Messages:
    3
    Location:
    Texas
    Looking at the plumbing for the heads on my new to me 1995 Post 46II. Looks as if the heads can be set to either flush to the holding tank OR to flush directly through the bottom. Doesn't seem likely, but that is what it looks like. As low in the boat as this plumbing is, what would prevent water from backing into (and possibly overflow) the toilets?

    In addition, the same area of plumbing in the forward bilge seems to have plumbing that will allow the heads to operate on either raw water fill or fresh water fill.

    Can any of you other Post 46 II owners confirm or correct my observations?
  2. RT46

    RT46 Senior Member

    Joined:
    Feb 22, 2011
    Messages:
    993
    Location:
    Long Island, NY
    Yes both heads can either pump directly out or into the holding tank.

    both of my heads are raw water fill, I do not have plumbing connecting the heads to the domestic water.
  3. boatpoor

    boatpoor New Member

    Joined:
    May 4, 2016
    Messages:
    25
    Location:
    32407
    Same here, and the heads are above the water line, they won't siphon seawater into the boat.

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