Yes, there are several reliable ways to test whether your water softener is operating correctly. First, you can use an at-home soap lather test; fill a small clean plastic bottle with tap water, add a few drops of pure liquid dish soap, and shake vigorously. Soft water will produce thick, luxurious suds instantly, whereas hard water will create cloudy, flat water with very little foam. Second, you can use a chemical test strip or a digital total hardness meter to check the grain hardness of water drawn from a softened indoor tap compared to an unsoftened outdoor spigot. Verification: Compare test strip color changes to confirm softened water registers near zero grains of hardness.
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