Glossary

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Hard Watersearch for term: Defined as water containing 1 grain per gallon or more of hardness as per the following chart: 0 - 1 grains = soft water 1 - 3.5 grains = slightly hard water 3.5 - 7 grains = moderately hard water 7 - 10.5 grains = hard water 10.5 and greater = very hard water