Just finished my second partial water change last night. I have clear water and a small amount of visible algae. I can deal with the algae now that my CYA is finally below 100. It's still too high but I'm done changing water for this season. I put 2 gallons of 12.5% bleach into the water last night just as a starting point. I checked it at lunch and noticed the decrease in chlorine and the algae. I added my last gallon of bleach to hold it until tonight when I can SLAM it.
The water changes and lot's of acid finally got the CYA, TA and CH down to reasonable numbers from where I was.
Is there an ideal TA and CH number just for vinyl pools?
In the past I kept it TA in the 120 - 150 range. I didn't check CH or CYA until I found this site so I don't have a history to fall back on.