Have visited site often and joined today
Bought a testing kit to confirm pool store analysis.
Have removed tab floater 4 weeks ago due to high CL and low ph
CL 5+ had been higher have not added any in 4 weeks; Ph 7.2 had been lower; FC 11 CC 1 TC 12 and CYA 300.
On CYA diluted sample to 1/3 pool and 2/3 tap water and it registered 100, 3x = 300
pool store had said 150, but I think that is their top end.
What is best approach? Drain pool and refill? Treat? Saw an ad for reverse osmosis service for poll? Other?