Pearson Boats - Common Systems > Plumbing and Galley Systems

AC Flush

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Frayed Knot:
The sea water is not coming out of the AC unit like I think it should and I think it has a restriction in the coils.  Coming out of the pump is strong.  So the question is has any one used Barnacle Buster and should I bypass the impeller on the pump.  Does It work?

Bill1188:
Go to Home Depot, buy some muriatic acid, and flush with that. Lot cheaper, better effect. JUST DO NOT BREATHE THE FUMES!

Frayed Knot:
If I use this.  How much water should I dilute it with?

Bill1188:
It's a concrete cleaner and used to shock swimming pools. I clean my humidifier filters with it, actually anything where calcium deposits form, like barnacles or zebra muscles. I put about a pint in a gallon of water. Remember, you can pour acid in water, but can't pour water in acid. And again, don't breathe the fumes.

Frayed Knot:
Thanks for the info. I flushed it this weekend and got a lot of crud out but it must have a freon leak. back to the AC man.

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