Join Date: May 2007
Location: Toronto, Canada
Thanked 25 Times in 25 Posts
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Re: Adding automatic bilge pump to manual bilge pump
Not sure the reason you want to do this, but I would only join with a Y valve just before the thru-hull, and only when the hoses are as close to horizontal as possible. Otherwise the auto bilge pump will need to work harder to push the water up to two hoses and you will have a lot more standing water that will run back down once the pump turns off.