Review on Industrial Test Systems Poolcheck 481333 by Will Rahman
Very inaccurate.: pH test strips
Like others, I added borax using one of the popular online calculators. After adding the recommended amount (84 pounds in my case) in 40 pound increments, I went from zero to 25 ppm. I added another 40 pounds thinking it would make a difference but I was wrong! He still says 25ppm after adding 120lbs. Finally, as a test, I put the water in the cup with borax and it still read 25ppm. I wouldn't recommend them to anyone.
- Industrial & Scientific
- So far so good
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