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Jul 14 2009

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Black Spots on Fibreglass Swimming Pools

Black Spots on Fibreglass Swimming Pools

Most fibreglass pools will, at some stage, develop black spots on the surface of the pool.

This type of black-spot is not a bacteria but a mineral that bleeds from the inner skin of the fibreglass.

It’s appearance can be delayed and controlled if the water Ph level is kept around 7.2

Some advise on Black-spot treatments from:
http://www.aquahouse.com.au/Pool%20M…20treating.htm

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