Stains on new concrete deck.

[Otis B.]

Pool renovation was done last Summer along with new concrete deck, and a new Merlin pool cover was installed when we closed up in the Fall. When removing the pool cover last week we noticed staining in the concrete where the cover wasn't. I tried pressure washing and it didn't help. I also tried a small test area with some ZEP concrete cleaner that I picked up at Home Depot but still no luck. Any suggestions?



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[Fingaling]

Muriatic acid usually works, and you may have it already... Search for a how to on the internet and be safe.

 

[momba]

Pool renovation was done last Summer along with new concrete deck, and a new Merlin pool cover was installed when we closed up in the Fall. When removing the pool cover last week we noticed staining in the concrete where the cover wasn't. I tried pressure washing and it didn't help. I also tried a small test area with some ZEP concrete cleaner that I picked up at Home Depot but still no luck. Any suggestions?



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Hi,,,

Did you ever find a solution to fixing the two tones? I have the same thing with my pool. Where the safety cover lies in the winter is much brighter than the rest of the pool deck. Thanks,, Al