The Water Hardness test strip measures water hardness due to calcium carbonate from 0-500ppm, or from 0-30 grains/gallon.
Water hardness is caused almost entirely by calcium and magnesium ions. Other di- and trivalent metals have a similar effect, but usually are not present in high.
Buy Water Hardness Test Strips, Upgraded 100ct, 0-425 mg/L, HoneForest Hard Water Test Kit, Testing Total Hardness of Water Softener, Drinking Water.
it's time for a test. Discover several strategies for how to test water hardness with our DIY tests. A hard water kit includes test strips and a color chart. You can.