bottom of pool, black stains

Stains on the pool surfaces, pool equipment
or on the swimmers, or off-color swimming pool
water. Discolored but clear pool water.
zlm7w
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bottom of pool, black stains

Postby zlm7w » Mon 23 Feb, 2009 23:40

I have a underground pool, finished with marblite. Have black stains showing up at the bottom corners of pool. Anyone with suggestions on how to remove them, what is causing this? I have tried srubbing them but
no luck.


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Larry
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Re: bottom of pool, black stains

Postby Larry » Tue 24 Feb, 2009 12:21

Could you describe the stains a little.

Often stains are a result of metals or tannins in the water, but other times algae can give the impression of staining.

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