I've always used 25 ml for testing chlorine. I've only used the 10 ml for the calcium test.
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						 Re: CC higher than FC
 Re: CC higher than FC
		I've always used 25 ml for testing chlorine. I've only used the 10 ml for the calcium test.
25k gal pool, 18 x 36, 3' to 8' depth. Vinyl lined. Single speed pump
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