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#1
02-17-2011, 07:49 PM
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+1 to globaldesigns ... he needs to re-test and read the directions.
If I remeber correctly, open the instruction card, the left hand side is test (part 1), after that you need to wash and get another water sample for the right hand side of the instruction card (part 2). After these 2 parts, then do the calculation. 
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