first thing to do would be to post your numbers for pH, TA, CH, surface finish and size of your pool/spa so we can get a handle on whether the problem is from the grout or maybe from your water balance.
Re: Calcium leaching from grout.
first thing to do would be to post your numbers for pH, TA, CH, surface finish and size of your pool/spa so we can get a handle on whether the problem is from the grout or maybe from your water balance.
Retired pool store and commercial pool maintenance guy.
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