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Performed ascorbic acid treatment for iron stains followed by the addition of Stain-Treat sequestrant one week ago today. Struggling unsuccessfully to keep chlorine up to min of 5 needed based on my CYA level due to treatment. Now have mustard algae from pool having zero chlorine for so long...

Bought this house two years ago. Re-plastered pool at that time. Converted over to using liquid bleach sanitizing program last summer thanks to wonderful folks here. In Houston and pool is open all year. Pool has never been used since re-plaster (I know, I know - long story). Have been...

I started noticing what appears to be almost a yellow grainy texture throughout my pool in the past week or so. It's not yellow algae. It's literally like thousands of little yellow dots. It's through entire pool, walls and floor. I tried brushing and vacuuming to no avail. I have had no...