Thanks for the info.
Had thought about draining some of the water but right now we are on a water ban. I live in Oklahoma and this is the driest year we have had in a long time. I can get by on adding small amounts of water but not enough to re-fill. So for right now I have to contend with the high CYA. Next year will be different though-----------no more tablets for me!!!!!
Question: Since no hardness shows up should I do something about that? Do I need to add something?
Thanks for the help.
Karen