New to site and frustrated with my pool. Troubleshooting for 3 days now.
My metrics are as follows:
Vinyl inground pool with 22k gallons. Jandy pump with cleaning system and inline chlorinator
Free chlorine was zero over weekend and I had pink algae surface in skimmers but nowhere else in pool. I shocked twice and was able to keep FC at 3-5 ppm for over 32 hrs. All other levels right on target. Treated with pink algaecide. No sign of it since. Pool is super clear. I took reading this morning and everything was perfect. I only added some calcium to raise by 50 ppm. 12 hrs later and everything is good except FC is zero and TC is also zero. I havent backwashed at all. Other readings are TC = 0, alk = 100, ph = 7.6, CH = 100, CYA = 50-60. Any help is appreciated.