All I have been battling high CYA since the moemtn I had new water last year. I think the guy who drained refilled put too much stabilizer in at start-up... I'm finding that I have to put a ton of liquid chlorine in to keep it high. Plus I'm finding that ph creeps up pretty quickly. Possibly because TA is so high? The pool gets direct sunlight from 8a-4p.
Based on pool math it suggested that I drain about 60% of the water to get back to 40ppm CYA, which I'm doing tonight. Before I add anything Id like to get some feedback on approaching a chemical balance. I don't want to fight PH
Current pool readings:
PH:7.6 - 7.8
CH:210 - 220
This is a plaster pool that had its plaster re-done about 3 years ago.
Id like to get your feedback on the correct values for each reading and which to balance first.
Thanks for your help!