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Tue, Feb 8, 11 at 19:52
| This our 6 month old grotto and its covered in what appears to be hard water stains. My builder is going to have it repainted but we have no idea how to prevent the problem in the future. Anyone have any ideas?
There is a leak here but its staining like this in other areas where the water runs off. Thanks!
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Follow-Up Postings:
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| See if there is a Reverse Osmosis service that can come by. That will remove the calcium from the water. It takes out the salt and stabilizer too so those may need to be replenished after depending on the levels. Scott |
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| I doubt that is deposits from the pool water. If they were, they would be less likely to manifest on the vertical surfaces. This is more than likely caused by efflorescence http://en.wikipedia.org/wiki/Efflorescence |
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| Scott, For the most part water in Phoenix area is very hard. Have not heard of a service here doing the RO. As Racket said this is Efflorescence coming out of the faux rock. |
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| While it might very well be effervescence, what are the current pH, alk, and calcium levels? Scott |
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| Racket/JAPB, Do you agree with the OP builder's solution to re-paint it? And should it continue season to season or is it an initial cure issue that will somewhat disappear? |
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