Thanks everyone. I will be switching to liquid bleach.. I am going to Sam's club tomorrow and will see what deal they have there. Is there a difference between the chlorine in "clorox" and the chlorine they have at the pool store?

What test kit would you recommend and where is the best place to buy?

and finally, with CYA level so high, what should I keep my chlorine level at until CYA drops (I am hoping with all the rain in Aug that it will flush some out.)

once again thank for the advice