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1
Check the acidity / alkalinity of your presoak and your clear waste-water. Scotch tape like dispenser. Tear off a strip and dip into any liquid and know the pH by matching the color to the color guide on the dispenser. Works in colored dye baths as well.
Ph Test Paper Range is 1-14 Level 15 ft. roll; Use approx. 2 in. per test (approx. 90