headache

FC: 5.5 CC: 0 pH: 7.4 TA: 110 CH: 150 CYA: ~26 Water temp: 80 F 10K gal AG TF-100 kit Hi everyone and welcome back to pool season in the Northeast! Opened up about a week ago, passed the OCLT on 5/21 and then had a crazy heat wave the past 2 or 3 days so the kids have spent considerable...