Join Date: Jan 2003
Location: Maine Coast
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You don't need
You are over thinking it. You don't need a multi-position valve. I don't think you'll have much luck finding a bronze multi-position, UL Marine listed valve for use bellow the waterline anyway.
The easy way is to just add a tee to the input of the sea strainer. From here you can winterize.
Once the tee is installed you can then plug the winterizing port with a plug. When you need to winterize close seacock, remove plug and insert hose and barb and suck the antifreeze through.
P.S. It takes me all of 30 seconds to remove the hose from my sea strainer and connect my longer winterizing hose.
-Maine Sail / CS-36T
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Last edited by Maine Sail; 11-07-2008 at 10:28 PM.