CYA and tri-chlor

[aylad]

How much CYA is in a Trichlor puck?

I can't give you the chemical makeup like some others can, but I can tell you that in my 29K pool, one puck gives roughly 1 ppm of CYA. I've used trichlor a good bit over the last four pool seasons.....I intentionally run my CYA up to around 80 because I'm in bright, sunny, Louisiana with no shade around the pool, and it usually takes me about 1/2 the season to get it up where I want it. Chemistry is not my thing, but that's my practical experience.

Janet