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  1. #11
    Join Date
    Jun 2009
    Location
    LaGrange, KY
    Posts
    15

    Default Drain Holes and Flappers

    Thanks all, for the drain hole advice! I called the shop today and told them NOT to drill any drainage holes.

    On another note, I am thinking about installing exhaust flappers in-place of the SuperTrapps. I have read the threads but it isn't real clear to me if I have to remove and shorten the stainless steel piping in the boat, or do I just cut off the threaded part of the SuperTrapp flange?

  2. #12
    Join Date
    Jun 2002
    Location
    Canton, GA
    Posts
    243

    Default

    You will need to cut the existIng pipes. You will need a piece of rubber exhaust hose and several clamps to hook to the new flappers pipe and the old exhaust pipe.

  3. #13
    Join Date
    Jul 2008
    Location
    Whidbey Island Washington
    Posts
    501

    Default

    I would consider removing the foam and not replacing it. Then add drain holes as you mentioned to allow condensation drain paths to the bilge. I think the foam does more damage than good over the long term.
    Rick Ludtke
    1990 Supra Pirata
    1987 Supra Comp TS6M
    Photo Album https://forum.supraboats.com/album.php?albumid=4

  4. #14
    Join Date
    Feb 2009
    Location
    Edmond, OK
    Posts
    2,508

    Default

    Yes, Mikey. You are correct.

  5. #15
    Join Date
    Aug 2009
    Posts
    651

    Default

    Quote Originally Posted by rludtke View Post
    I would consider removing the foam and not replacing it. Then add drain holes as you mentioned to allow condensation drain paths to the bilge. I think the foam does more damage than good over the long term.
    My power boat is basically the same concept! No foam.. Just iberglassed stringers and the whole thing painted with bilge paint w/ drain holes

  6. #16
    Join Date
    Feb 2009
    Location
    Missouri
    Posts
    927

    Default

    Yes foam out, plastic ballast tanks in. Underfloor ballast, perfect.

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