Our pool is SWGC. When I first tested with my brand new TF100 test one month ago (June 3), I had high CC (2.5), TA (180) and zero CYA. FC was 0.5. I got ready to SLAM, gathered all the chemicals needed and before adding them, I tested again (June 5), and CC was 0.5 this time (FC=2), so I didn't perform SLAM after all.
I slowly keep adding stabilizer (I know my goal is CYA = 70, but I was warned not to raise it too fast, in case I would need SLAM), but for some reason, I basically don't have chlorine. Three days ago (June 29) I added liquid chlorine (bleach) to raise FC to 3, and also CYA (sock in my two skimmers, two pounds each so 4 pounds total) to raise CYA to 40. The next morning, I tested FC and it was only 1.5. It took 2 days for all the stabilizer dissolve and when I checked this morning, CYA was 40 as expected. I also noticed this morning that pH was somewhat lower than normally (around 7.0 vs 7.2-7.5). FC was 0.5 this morning (or less - barely noticeable pink which cleared after first drop)
What could cause the constant chlorine loss? Low CYA maybe? Shall I add bleach again? Aim for FC 3? Or more?
I also plan to add some baking soda to raise pH. Not CYA tonight - I want to test tomorrow morning again, which would be 36 hours after all stabilizer dissolved, and add more stabilizer then. Shall I aim for 70 this time?
I slowly keep adding stabilizer (I know my goal is CYA = 70, but I was warned not to raise it too fast, in case I would need SLAM), but for some reason, I basically don't have chlorine. Three days ago (June 29) I added liquid chlorine (bleach) to raise FC to 3, and also CYA (sock in my two skimmers, two pounds each so 4 pounds total) to raise CYA to 40. The next morning, I tested FC and it was only 1.5. It took 2 days for all the stabilizer dissolve and when I checked this morning, CYA was 40 as expected. I also noticed this morning that pH was somewhat lower than normally (around 7.0 vs 7.2-7.5). FC was 0.5 this morning (or less - barely noticeable pink which cleared after first drop)
What could cause the constant chlorine loss? Low CYA maybe? Shall I add bleach again? Aim for FC 3? Or more?
I also plan to add some baking soda to raise pH. Not CYA tonight - I want to test tomorrow morning again, which would be 36 hours after all stabilizer dissolved, and add more stabilizer then. Shall I aim for 70 this time?