Last year our pool was new and we used trichlor pucks. We had no troubles with the pool and was very easy to maintain, however; after just one 3 month season, the CYA went up to around 90. We drained several inches and refilled several times toward the end of the season. Then drained below skimmers and returns for the winter. After filling back up for this season, CYA is high 30's to 40. We've been using BBB method this year to avoid the rise in CYA, but are now having terrible time with Ph constantly rising. I'm having to add Ph- every other day. I have dropped alkalinity to 60, but Ph still rises. I'm beginning to think it would be less maintenance and cheaper to go back to trichlor and just drain and refill to maintain CYA. We are on a well, so we do not pay for water. Any body else have any thoughts on this?