22 gallons of bleach and I can't get my chlorine above 5

[cscannon]

Thanks for your help. I had absolutely NO idea that chlorine would disappear so quickly without CYA. Prior to this year, we've always had a cover so I've never had this problem. This year we replaced it and after they took our old one off, they found that the new one wasn't the right size. So now we have nothing.

I am using a Taylor DPD test kit. When I first opened my pool a week ago my pH was 8.0. (I wasn't very faithful about testing it during the winter.) I added enough muriatic acid to bring the pH down to 7.3. A couple of days later I started adding the chlorine. As I did so the pH was going back up and is currently at 7.8. I ignored the high pH thinking that as soon as I was done with the shock I'd be adding CYA which I figured would be lowering the pH. Then I could add whatever muriatic acid was needed after that. TC doesn't seem to be any higher than FC.


Thanks,

Steve