Quote Originally Posted by Coolflee22
Thanks to all who helped, Im opening the pool this weekend and will post some numbers. Just need to clarify something here - the chlorine tabs have the stablizer in them(CYA) so as long as it does not get too high Im ok. If it gets hight I need to stop using the tavlets and go with straight bleach. If the CYA get way overboard I will need to drain some water and refill to get the level down. Am I correct? What level of CYA is too high? Is it the high end of Ben's CYA chart?
Thanks for all the help
R
You've got a good understanding of it. The "normal" range for CYA depends on you and certain characteristics of your pool. As pointed out already, just know that if you raise your CYA to high levels, then you need to keep higher maintenance levels of chlorine to compensate. Most people around this forum tend to stick with 20-40 ppm, and add a small amount of bleach daily. I, on the other hand, live in a very hot climate with full sun on my pool and a heavy swimmer load, so I tend to keep my CYA around the 80-90 ppm mark and only add bleach a couple of times a week. Many people around this forum shudder at the idea, but it works for me!

Janet