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#1
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I have decided to put switches on my pumps to be able to shut them off while not in water, then leave on when on the mooring, seeing that i am only going to use the mooring 3 days a week during Bass season.
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1986 V20  Old Fishermen never die, we just SMELL that way!! 
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#2
04-30-2012, 08:46 AM
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Seems like if both pumps are not running at the same time you could install inline check valves to keep the water from flowing back through the other pump, as long as they're large enough not to restrict the outboard flow. Just a thought!
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 77 V20 cuddy with 170 I/O Mercruiser 72 16ft. Carolina w/a 25hp Evinrude
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#3
04-30-2012, 08:31 PM
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Home
<LI class=last>AMERICAN VALVE 2" PVC Check Valve Socket   AMERICAN VALVE 2" PVC Check Valve Socket Item #: 154372 | Model #: P32S 2  Be the first towrite a review! Share this product:      $11.83
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 81 V20 1996 200 Ocean Pro
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#4
04-30-2012, 08:35 PM
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Finally an advantage to having every part not part of my hull in my upstairs bonus room. Just poured water down the discharge hose on one of my bilges and it ran right through the pump (rule).
You could go with oversized check valves like I posted above or go the route of 1.5" brass for $23. Just figure the larger valve will help make up for the loss in GPM as noted above. I will be tying 2 bilges into a 2" through hull and using the PVC valves. Figured that would save me an additional $45 stainless thru hull.
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81 V20 1996 200 Ocean Pro
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