Calcium and magnesium ions are the primary causes of water hardness. Use this kit to monitor water hardness levels and minimize scale buildup. It uses drop-count titration with EDTA to provide results as CaCO3 in grains per gallon.
Includes: reagents for approximately 100 tests, sample test tube, mixing bottle, reagent spoon and instructions. Stock #s 77425, 77426 and 77427 also include polypropylene carrying case.