Re: 20ft scuppers
They will only work if the ball is OUT of the water the majority of the time. If there isnt enough pitch from under the deck out to the transom (or if it ends up below the water line) than its not even worth doing.
http://www.rabud.com/SCUPPER-FLYER-small.pdf
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Patrick from WAY out on cape cod.
1973 23foot Center console, Birdsall Ttop, Hermco Bracket... in progress
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