How to Check Water Hardness - 3 Easy Ways of Water ...
2021-7-8 · It means water is hard. Hard water Test #2 Hard Water Kit. A hard water kit is the second method to test hard water. The soap method is the best and easy method to determine the hardness level. But if you want to choose the hardness level in figures, then using a hard water kit is the best way. Purchasing the kit is not expensive.
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