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post #11 of Old 06-21-2012
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Re: destroyed impeller

Originally Posted by Flybyknight View Post
Might be a good time to clean the passages. In my other life as a chemical engineer we find that as little as 1/32" of scale reduces the heat transfer by 20%.

If you suck 1 gallon of white vinegar (< $3 at a supermarket) into your raw water side and leave it overnight it should help de-scale the cooling passages.

I try to do this periodically with my raw water cooled engine.

"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

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