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Boat House
2nd bilge pump
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<blockquote data-quote="DaleH" data-source="post: 380054" data-attributes="member: 15636"><p>2 things ... </p><p></p><p>-All bilge pumps are rated at the outlet, so if you have poor wiring and a long hose run or high lift to get it outside the boat, that 750 pump might perform like a 300-400 GPH one.</p><p></p><p>-Use internally SMOOTH-bore tubing, as any spirals or corrugations like used on typical bilge hose ... robs you of an additional 10-20% efficiency due to losses for resistance and turbulence (Bernoulli's theory of hydronamics)</p></blockquote><p></p>
[QUOTE="DaleH, post: 380054, member: 15636"] 2 things ... -All bilge pumps are rated at the outlet, so if you have poor wiring and a long hose run or high lift to get it outside the boat, that 750 pump might perform like a 300-400 GPH one. -Use internally SMOOTH-bore tubing, as any spirals or corrugations like used on typical bilge hose ... robs you of an additional 10-20% efficiency due to losses for resistance and turbulence (Bernoulli's theory of hydronamics) [/QUOTE]
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2nd bilge pump
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