Water Test Kits Promise to Tell You if Your Tap Water Is Safe—but Do They Work? We asked the pros if testing your water at home is a legit way to find contamination.

Starting with the results of the TDS test, CMW spiked the water with 500 parts per million dissolved solids, and found out that three of the four brands – Brita, Pur and Great Value – filtered ...

New Jersey’s the Passaic River and the Molly Ann Brook River have been a heavily polluted industrial waterway, for more than ...

The company even includes a TDS (total dissolved solids) meter with its products. That way consumers can personally test the results of their filtering.