I bought a foreclosure home which had a pool and posted the progress cleaning it up last year. The pool has been a blast. Last year after it cleared up, we noticed a crack in the plaster under the spa and into the step in the deep end. We just watched it and it has not grown at all. I have not had it leak tested but I am not loosing any water other than the normal evaporation on hot and windy days. I took some underwater pictures to show so I can be sure this is not something I should be more concerned about. I feel that this may have occurred after the pool was originally built in 2007. The plaster is Diamond Brite Watercolors Ocean Blue. The white mottled staining is what occurred after a year of sitting with algae and lots of leaves. I can't seem to get those stains to go away. I know it's going to take a drain and acid wash but we have enjoyed it way too much so have not had time to do so. Please give me your opinion. Thanks!
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