Don't worry too much right now about the CYA--just concentrate on keeping your chlorine where it needs to be. Testing this evening isn't going to make much of a difference. Give it a couple of days, time to replace your reagent, and then test it again. If it's still low, then you can add a little more. You need to target around 30-40 ppm.
Janet

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I have a really hard time keeping my mouth shut when I hear the conversations of the people in front of me......then I wait for the sales people to walk away, and give the customers the link to this site. Too bad they're the only ones in town that don't have copper in the trichlor and stock parts for my Polaris, otherwise I'd never even have to go in!!
Think I'll just keep coming here...
