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What Is Hardness in Water?

Hard water is one of the most common water quality concerns reported by consumers in the United States. The hardness of water is determined by the calcium and, to a lesser extent, magnesium carbonates naturally dissolved in it. As the concentration of the dissolved minerals increase, the water becomes harder.

Across the U.S., there are waters that are very soft (low in carbonates) and waters that are very hard (high in carbonates). If your water contains substantial amounts of these minerals, water is said to be hard because making lather or suds is hard to do. Soft water creates the opposite result, making lather or suds easy to do.

Problems Created by Hard Water

Hard water can be a nuisance in many ways. Most directly, you notice it on your skin and hair since your bathe in water frequently. Very hard water also leaves calcium scale or mineral deposits behind when it is heated up. Beyond that, you may notice an accumulation of white/chalky deposits on items such as plumbing, tubs, sinks, pots and pans. Other things you may notice include:

  • increased difficulty in cleaning and laundering tasks
  • decreased efficiency of water heaters
  • white spots on glassware
  • white spots on your car after washing
  • soap scum on bathtubs, shower tiles, and basins
  • it is more difficult to remove soap when washing or bathing
  • accumulation of hard, cream colored deposits around fixtures, dishwashers, clothes washers and inside pipes
CuZn 10" Chlorine + Hardness 45,000 Gallon Whole House Replacement Filter THUMBNAIL
Expected to ship today
CuZn chlorine + hardness replacement filters for WHBB2-10H High Hardness 45,000 gallon 10" small home water replacement filters (double tank)
$268.00 $254.60
Part #: CZ-BB2-10H
CuZn Chloramine + High Hardness Saltless Water Softener THUMBNAIL
Expected to ship today
Designed for chloramine treated water with high hardness above 10 grains. Free ground shipping USA
$3,390.00 $3,051.00
Part #: CZ-WHCM-47-DTH
CuZn High Hardness 5 Year Conditioning Saltless Water Softener THUMBNAIL
Expected to ship today
Designed for high water hardness above 10 grains and purification is not a concern. Treats 300,000 gallons Free ground shipping USA
Part #: CZ-WHCC7-35H

CuZn Kitchen Under-Counter 10" Hardness Filters Prefilters THUMBNAIL
Expected to ship today
10" tank designed to install in tandum with an existing undercounter tank
Part #: CZ-UC-HARD-Add On
CuZn WHCC-35 Chlorine Wide Spectrum Whole House Water Filter + Salt Free Water Softener THUMBNAIL
Expected to ship today
Designed for chlorine treated water with hardness less than 10 grains. Free ground shipping USA
$999.00 $899.10
Part #: CZ-WHCC-35
Filtersorb Salt Free Water Softener + Chlorine Removal, Protect Pipes image THUMBNAIL
Expected to ship today
Filtersorb double cartridge water softener in 10" 45,000 gallon or 20" 80,000 gallon models. Also removes chlorine, disinfection by-products, herbicides, pesticides and other inorganic and organic compounds. Free Ground USA Shipping
$521.10 - $719.10
Part #: CZ-WHBB-H

CuZn Replacement Filter for Salt Free Water Softener image THUMBNAIL
Expected to ship today
CuZn 80K Gallon WHBB2-20H Replacement for Water Softener + Chlorine Filter
$398.00 $358.20
Part #: CZ-WHBBR-2H
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