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Hard Water Search

Enter your zip code to discover how hard your water is!

Zip Code Search Results

Zip Code Mineral Amount (PPM) Hardness Level

Hard water can be defined as water that is high in mineral content. It can have a negative impact on your home and even your body. Evidence of this may be seen from erosion in your pipes and dry skin. Water hardness levels change from place to place and may depend on the source of your water. Although each home’s hardness level may be a little different, this tool can give you an estimate based off of the levels seen within your zip code.

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Hardness as Parts Per Million Hardness in Grains Per Gallon Classification of Water
1-17 < 1.0 Soft
17-60 1.0-3.5 Slightly Hard
60-120 3.5-7.0 Moderately Hard
120-180 7.0-10.5 Hard
180+ 10.5+ Very Hard

How to Understand the Tool

Hardness as Parts Per Million (PPM)

By putting your zip code into the tool, you’ll be told how many parts per million (PPM) of minerals your water contains.

Hardness in Grains Per Gallon (GPG)

Go to the table above and check your PPM number. To the right of it, you’ll be given a grains per gallon (GPG) number. This refers to the number of mineral grains that are typically found in a gallon of water coming out of your faucets.

Classification of Water

Your water’s hardness level depends on how high your mineral content is. At the far right of your PPM, you’ll be told whether or not the water in your home has soft or hard water. This information should help you make the decision of whether or not to invest in a water softener.

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