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Just finished a replastering job on Friday, Aug. 27. Commenced refill at 3 p.m.(CDT) same day and finished refill at 12 noon, Aug.28. Have added some acid and Jack's Magic Blue Stuff - 2 quarts for a +/- 21K pool. 1) Is that enough sequesterant? Recommended to use 1 qt./10K. Don't have any...

Trying to decide whether or not to patch a hole in plaster in pool wall about 6' deep. Some people advise that patches don't last, will leak, and not match color of rest of pool. Of course, to completely replaster pool will cost about 15-16 times as much as the patch, but I would end up with a...

Like to request some help on setting priorities for treating my pool. Have several items to work on. Chem. pH-8.2+, TA-200, FC-2(at the moment), CC-<0.5, CH-480(Was 600, but lowered by partial drain), CYA-44(was about 100, but lowered with partial drain). Temp-80-83 deg F. Water is clear and...

First time poster: I have a scale problem in my spa(what's the difference between a hot tub and a spa?). The scale which is dirty looking is probably CaCO3 with embedded sand. Water Chem: pH-8.2, FC-2.5, CC-<0.5, TA-180, CH-250-300, CYA-0 A review of posts in this forum suggests that the...