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What it does...
PHENOL RED
To test for pH levels in pool or spa water, the ideal readings should be between 7.4 – 7.6 (ppm), use 5 drops for accurate readings. Compatible with the Rainbow test kit.
How it works...
How to use:
Fill large tube/vial (with water to be tested) to the solid line.
Add 5 drops of solution #2 (pH Test) and mix by swirling. Compare test results to pH colour standards chart.
If reading is above 7.8 ppm, perform Acid Demand Test (Solution #3) using the same water sample. Adjust the total alkalinity if required, before adjusting the pH.
