Join Date: Aug 2006
Location: Arlington, VA
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No problem at all with a bilge pump outlet near the waterline, so long as you have an anti-siphon loop and, preferably, a seacock you can close when sailing/heeling.
I concur with Brian re: hose size. Don't ever go smaller than the pump outlet.
Best pump I've found -- and I've tried them all over the past 28 years -- is the FloJet (NOT the ShureFlo). ITT bought these a few years ago, and so far they haven't fooled with the design...only the price!
I won't have any other pump aboard. Flojet pumps for bilge and pressure fresh water systems. They handle the lift you have just fine. I have three which are mounted just under the cabin sole and have pickups extending down some 5' into the bottom of the bilge.
The main problem you have to solve, eventually, is with the bilge pump float switches. These are notoriously unreliable. Again, I've tried them all and they're all crap...except for, of course, the quite expensive ones. After dicking around all these years, a couple of years ago I bit the bullet and went with the UltraSwitch Senior and UltraSwitch Junior for my two bilge pumps, with a high-water alarm as well. $300 investment, but well worth it. No more problems.
Short of that, I found the much less expensive electronic switches (have two metal contacts and work by sensing water between the contacts..no moving parts) worked reasonably well for several years, providing you keep the contacts clean and don't have an oily bilge.
Avoid the float switches with the moving arm like the plague. They're all -- and I'm going to use a technical industry term -- CRAP!
Last edited by btrayfors; 08-06-2011 at 09:10 AM.