“For example, sometimes hardware stores will offer free test kits for hardness. These tend to be very small vials that you fill with your tap water and then mail in. Often, they are only testing ...

Two water departments have advised residents In Los Angeles against drinking tap water due to potential contamination ...

It's easy to test your water with at-home testing kits, such as the Varify Water Hardness Test Kit, which retails for around $10. It may not be detrimental to your health, but hard water can damage ...