The Hydrion Water Hardness Test Kit is packed with two rolls of test papers and two specially calibrated color charts. One roll measures between 0-20 grains per gallon of calcium carbonate. The second roll measures from 10-50 grains per gallon.
The color chart has color matches at 0-5-10-20 grains per gallon. A reading of 5 grains per gallon indicates moderately hard water. The second roll of test paper has color chart matches at 10-20-30-50 grains per gallon and is used for testing known hard water sources.
Product Directions
The Hydrion Water Hardness Test Kit eliminates the need for expensive laboratory equipment or complicated titration kits. It eliminates the need for technically trained personnel.
For accurate results; simply tear off a strip of test paper, immerse in water for five seconds, compare color to color chart.