I live in Orlando and it rains quite a lot lately. For some reason my Pool does not keep CYA, it always lowers somehow actually so i guess thats good? so we have been adding one 3 inch clorox trichlor puck a week which seems to have been doing the trick. Next thing you know its a war. pool goes green everywhere. Brushed it and dumped a bag of cal hypo. Pool starts clearing up and its looking good, did not get a chance to clean the filter yet due to the thunder storm. 1 storm later and the pool is getting green even after adding 3 pucks, my CYA is 45. argh