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Thread: Gibson 50' Cabin Yacht tank removal and replacement.

  1. #1
    Junior Member
    Join Date
    Apr 2020
    Paragould, Arkansas

    Gibson 50' Cabin Yacht tank removal and replacement.

    Hi. New to the site. I bought a 1990 Gibson Cabin Yacht about a year and a half ago. The freshwater tank let loose due to corrosion (aluminum tanks), and I'm replacing it (have it out of the boat already), but am afraid the blackwater tank will let loose soon enough, so want to replace it too, along with he lines to it. It is not clear to me as to how to remove the blackwater tank at first or even second glance. Anyone have any experience they could pass on to me?

    I've also had two marine mechanics looks at it, and they don't know either.

    The boat is on Lake Norfork, in NC Arkansas.


  2. #2
    Moderator BananaTom's Avatar
    Join Date
    Dec 2006
    Pensacola, Florida
    I replaced a black water tank in Gibson 36, mine was located under the dining table which converted to bed. We removed the table, cut the floor, and removed the tank so I could measure it. The ordered a plastic tank, and once it arrived, installed it, which included cutting holes is the plastic replacement tank at the appropriate locations.

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