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Spray foam for flotation?
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<blockquote data-quote="DaleH" data-source="post: 401827" data-attributes="member: 15636"><p>Yes, I always glassed in 2" PVC halfs to ensure proper drainage. Never had a clog or issue. </p><p></p><p>On frp 'offshore' boat transoms, I'd also drill out the small 1" drains and glass in 2" PVC scuppers/drains. They allow 4X the amount of water to exit ... look at the performance increase below, as measured in gallons per minute per scupper tube, or as <em>pounds of water</em>) (crucial for offshore boats :shock: ) by the bigger diameter.</p><p></p><p>This is based upon the scientific principle involving the 'drag' of water, as pictured ...</p></blockquote><p></p>
[QUOTE="DaleH, post: 401827, member: 15636"] Yes, I always glassed in 2" PVC halfs to ensure proper drainage. Never had a clog or issue. On frp 'offshore' boat transoms, I'd also drill out the small 1" drains and glass in 2" PVC scuppers/drains. They allow 4X the amount of water to exit ... look at the performance increase below, as measured in gallons per minute per scupper tube, or as [i]pounds of water[/i]) (crucial for offshore boats :shock: ) by the bigger diameter. This is based upon the scientific principle involving the 'drag' of water, as pictured ... [/QUOTE]
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Spray foam for flotation?
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