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Re: Scale



Sandy1238 at aol_com wrote:
> 
> Hi All,
> I have a bad case of water scaling on some tanks. I need a safe way to get
> rid of it if there is short of buying new tanks.

Easy if it is just CaCO3 (lime) deposits. You can use any strong acid to
soften it so the stuff can be scrubbed off (maybe after some gentle
scraping). I have used pool acid (HCl, aka "Muriatic") but prefer a product
available at most hardware stores called "CLR" which I believe stands for
calcium, lime and rust remover. It is tough on skin or eyes, too, so wear
proper protection as warned on the label.

Some aquaria get actually etched by strong alkalis, as in salt-water tanks,
or redeposit SiO2 from condensation (cover glass, usually). Those kinds of
frosting will not be helped by acid washing. If it doesn't "fizz" you
probably need to replace it.

Wright

-- 
Wright Huntley -- 650 843-1240 -- 866 Clara Dr. Palo Alto CA 94303 
                    http://www.sfbaka.net.

   Instead of giving money to found colleges to promote
   learning, why don't they pass a constitutional amendment
   prohibiting anybody from learning anything? If it works as
   good as the Prohibition one did, why, in five years we would
   have the smartest race of people on earth. -- Will Rogers

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