This is an issue I have with my pool and I THINK I have the answer.

Adding 1 lbs of 100% TriChlor (trichloro-s-triazinetrione) to a 10,000 gallon pool will give you 18 ppm Cl and 11 ppm of CYA. (These numbers come indirectly from "Pool & Spa Operator Handbook"...)

Thus - a 35 lbs box of 90% TriChlor will add 338 ppm.... to a 10,000 gallon pool. OUCH!

Someone please tell me if this is wrong.


Pool & Spa Operator Handbook - https://www.amazon.com/Pool-Spa-Oper.../dp/0984586377