It's only dropping from FC=25 to FC=23 or 24 overnight? Then you are good as gold! If it dropped to FC=10 then you'd still be fighting. But down 1-2ppm from 25? Not to worry!
Re: Chlorine Lock ?
It's only dropping from FC=25 to FC=23 or 24 overnight? Then you are good as gold! If it dropped to FC=10 then you'd still be fighting. But down 1-2ppm from 25? Not to worry!
Carl
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