Al, they are a compromise. Pumping water uphill is always an issue.
I agree with Neil that if you want to incur the expense and have the space in the boat, a stand pipe arrangement would be better.
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-Shawn
"Holiday" - '89 Alura 35 #109
"Twice Around" - '77 C-30, #511 with original A-4 & MMI manifold - SOLD! (no longer a two boat owner!!)
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