Join Date: Feb 2010
Location: Narragansett Bay
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You can partially drain the antifreeze if you like, but I would use -100 deg, which can be partially dilluted and still protect. Some nooks and crannies might not fully displace the water. However, I would just leave it fully charged with anti-freeze.
I leave my impeller in all winter. It's good motivation to change it each spring.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Last edited by Minnewaska; 12-03-2011 at 06:30 AM.
Reason: Misunderstood question.