Over the weekend I drained my pool completely, had it acid washed, and refilled it on Monday. On Tuesday, I started noticing some stains which have gotten bigger and darker today. I haven't tested the pool water yet today because I'm in process of cleaning the filter cartridges (they were full of muck and currently soaking in a cleaning solution) but here it is for the last 2 days-
Date FC CC CYA pH 7/25/2016 9.5 0 41 ppm 7.4 7/26/2016 4.5 0 35 ppm 7.6
Any ideas on how to fix it? More chlorine? More acid?
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