Quote:
Originally Posted by edwardc
Auto antifreeze will handle a lower temperature, but it's toxic to fish and wildlife, and should be captured when dewinterizing in the spring.
The pink RV/Marine antifreeze (don't dilute) won't protect as low, but it's non-toxic and can be discharged overboard in the spring.
Given that you're in Chantilly VA, the winters are mild enough to use the pink stuff. I use it regularly in the Upper Chesapeake without problems.
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Actually marine life does not care about pink vs. green. Unless you plan to dump it some place where dogs, cats, or humans might drink it, don't worry about it. Fish don't care. It's a mammal thing
