We live in Dallas TX, we had record rainfall last month, one two day period was over 12", raining almost faster than the overflow could drain. Earlier in the spring I drained the pool to reduce the CYA from 80+ to 40, but now it is around 30.
There is a lot of shade around the pool, but it probably still gets a good 6 hours of sun on it a day. This week has been sunny and hot (93+), a more typical summer day, and I am still determining how much chlorine I am losing a day - it is starting to look like it is 2-3 ppm. Water temperature is around 86, pool is about 27,000 gallons. There are only two of us using the pool mostly on the weekends and a few hours during the week.
I've read the lower the CYA the more chlorine I will be using, are there any other negatives for a low CYA?
We have a new 50 lb bucket of 3" trichlor pucks we bought last year, before we knew what were doing. Can I use those to raise the CYA, if needed? We were going on vacation at the end of July, so I was planning on leaving 10-12 pucks floating around the pool in the dispensers for the week, but maybe that should be a future topic.