i added 70 oz of stabilizer to my pool friday to bring the CYA up to 120 from 40. our new pool will *hopefully* be done this weekend and our water pumped from our intex pool into the new one. once combined with another 14000 gallons, we should have a instant reading of ~40 ppm.
since I upped my cya, it is now taking 58 oz of bleach a day (up from a mere 20 oz) to maintain its crystal clarity and my ph has crashed (below 7.0) twice now and I have had to add borax to bring it up .the pH is unstable, fluctuating everyday from 7.0 to 7.8 day to day. my TA took a nose dive too from 90 to 60.
I am posting this for all beginners to see. This is what happens at high CYA levels. Everything just goes to pot. Before skyrocketing my CYA level up to 120, my pool was perfect, TA at 90 and pH at 7.4-7.7 every single day and only losing 1 to 2 ppm per day of FC. I have never had to add borax or soda to my pool before. Now its a daily fight just to keep this thing clear and swimmable.
I will be so glad when the new pool gets up and im back to normal.