220
people found this helpful, as of 2023
ranked #139,059 most helpful
out of 571,544,897 reviews
★★★★★
Use less salt now that I know where to set my water softener for hardness.
Easy to use and only takes minutes to test water for hardness.
the product in question
Water Total Hardness Test Strips 100ct | 99% Accuracy Hard Water Testing Kit with 0–25 GPG Optimized Range | Calcium & Magnesium Tester for Water Softener, Aquarium, Pool, Spa, Drinking & Well Water
4.2★ · 625 ratings, as of 2023