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On 12 Apr 2006 10:48:11 -0700, wrote:

I've got a white Kenner. I use it a lot on the central Texas Lakes
which are of course saturated with limestone. Then I go down to the
Gulf Coast. Next thing I know I've got this brown stain on the bottom
of the boat. I can remove it by rubbing HCl (swimming pool acid) on it
and rinsing off. I am wondering if there is some kind of wax that
would help prevent this stuff from sticking onto the gelcoat to begin
with. Any one have any recommendations?

tks

Don

I buy a box of oxalic acid at the hardware store and mix about three
tablespoons with a gallon of water. Spray it on, let set for a minute or
two, then wipe it and the brown (tannin) stain off.

Doing it like this costs about 20 cents a gallon. Or, you can go to a West
Marine and buy the same stuff already mixed for about $6 a quart.
--
'Til next time,

John H

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