I am new to the forum. I'm not new to taking care of pools, but I am far from an expert. I need some advise and a plan of attack for the summer.
I live in AZ with a 20k gal pool. Prob: CYA >140ppm, CH high (not tested, but been told). It's time to drain. Good to do every couple of years for both reasons. I know this would probably be the best approach, but for a few different reasons, we don't want to drain this year. We will plan on draining and refilling in the winter or spring.
Right now what is happening is that I am having to keep a high FC level due to the high CYA level. In the past few weeks, I have been brushing up against too low of FC resulting in the green stuff. But I seem to have found the right FC level, which is about 5-6ppm. The TA is really high, around 180ppm. The PH is good at around 7.5.
So, the question is: what would be a good plan of maintenance for the summer (if draining/refilling is avoided) so it's swimable? The water looks healthy, but it's more of a green sparkle than blue. BBB?