Hot Tub Forum
Original => Hot Tub Forum => Topic started by: thorshammer on August 05, 2012, 07:04:20 am
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Hello all, newby here. when testing the water where is purple on the scale from yellow to red?
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Past red.
To check, you can take a sample into the kitchen and dilute it half way with tap water - see if it comes back into range.
8)