Water hardness is caused almost entirely by calcium and magnesium ions. Other di- and trizalent metals have a similar effect, but usually are not present in high enough concentration in potable waters to cause problems. Hard...

Buy Now From Amazon

Product Review

Water hardness is caused almost entirely by calcium and magnesium ions. Other di- and trizalent metals have a similar effect, but usually are not present in high enough concentration in potable waters to cause problems. Hardness increases soap consumption in laundries and causes scale in boilers. Hardness test kits include the inexpensive Models 5-B and 5-EP designed for those needing quick checks on the efficiency of water softeners. More sophisticated test kits allow the determination of total hardness as well as calcium and magnesium (by difference).

  • Trust the original Hach test kit! Simple drop-count titration measures hardness as CaCO3 (1 gpg = 17.1 mg/L). Utilizes drop count titration with a range of 1-30 gpg. Contains approximately 100 tests. Drop count titration - a simple, economical titration method!

Similar Products

Hach 2745325 Iron Test Strips (Total Dissolved Iron), 0-5 mg/LJNW Direct Water Total Hardness Test Strips, 150 Strip MEGA Pack, Best Kit for Accurate Water Quality Testing to Determine Soft or Hard WaterResCare RK64N All-Purpose Water Softener Cleaner Liquid Refill, 64 OunceHach 2745250 Total Hardness Test Strips, 0-425 mg/LAFWFilters 5600SXT Water Softener, 48k, Black, Bypass with 3/4" ConnectionPro Products RK11K1 ResCare Easy Feeder Starter Kit Maintains Performance and Extends Life of Water SoftenerPentair WS48-56sxt10 Fleck water softener, BlackPremium Water Hardness Test Kit - Quick and Easy Hard Water Test Strips for Water Softener Dishwasher Well Spa and Pool Water | 50 Tester Strips at 0-425 ppm | Calcium and Magnesium Total HardnessHach 145400 Total Hardness Test Kit, Model 5-EPTotal Water Hardness Test Strips. Each Strip Best and Reliable for Home Testing Pool, Spa, Aquarium, Drinking Water, Well. Easy to Compare Color Chart. Dip for Quality Accurate Results in Seconds.