Test for Total Alkalinity, pH, and Free Chlorine.
1. Immerse strip for 2 seconds in water sample
2. Remove with pads of strip facing up. Shake once to remove excess water.
3. Immediately place strip into Twist Tester
4. Rotate Twist yellow rings to match colours for Total Alkalinity, pH and Free Chlorine.
5. Read the recommended dosages on the back of the Twist.
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