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Old 01-30-2018, 02:33 AM   #6
Comodave
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City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,191
I used Barnacle Buster in our engines last year. Saw a drop of 5 degrees on one engine and 10 degrees on the other. I just let the raw water pump draw it in and let it sit for 7 hours then started engines to flush it out. This only treated the raw water side though. Did the same to genset and A/C units.
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