Starting new thread as "Not Maintaining Cl" was solved by replacing display board in my Goldline Controls SWG unit. Now trying to balance chems. Background: Rec'd TFP-100 Test Kit 10/1. Replaced Display board 10/3, set it to 75%. Previously had been using liquid Cl to maintain Cl levels. I have been adding acid nearly every day since 10/1, min 32 oz, max 42 oz. Pump running 14 hours/day.
Date FC CC pH CH TA CYA CSI
10/1 3.5 .5 7.3 850 120 50 ok per pool math
10/3 4.5 .5 7.5 n/a--- Test at 1:45PM
10/4 5.5 .5 7.5 575 130 50 ok -- Added 2 cups of granular stabilizer. Test results at 11:30AM and prior to adding stabilizer.
10/6 11.0 0 7.5 600 130 70 .18 -- This morning at 7:30AM dialed SWG % back to 63% b/c I knew I was 5+ on daily test.
1) TA not moving down with daily acid addition and aerating via bubbles in attached spa. How low should I try to get my pH? to start seeing movement?
2) CYA was a light 70, and I am thinking about adding another cup of granules (via sock in skimmer). Whaddya think?
3) Now that it has been running a couple days, do you think the new Display board could be responsible for the Cl spike?
Looking forward to hearing y'all think I need to do next. My plan is to continue to work on TA and dial back the display board until I see Cl levels match up with XCl/CYA chart. Also, as mentioned above, thinking about bumping CYA a bit closer to 80. Thanks!