Testing for Hard Water

Hard water, characterized by high levels of minerals such as calcium and magnesium, is a common concern in many regions, particularly in California, where geological conditions contribute to elevated mineral content in water supplies. Below, we provide a simple, cost-effective method to test for hard water using everyday household items. For additional insights into hard water challenges specific to California, including regional water quality data and mitigation strategies, explore the resources linked at the bottom of this section.