Pentair Salt-Free Scale Control System

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If you see "detected", "median", and "range" in a groundwater hardness report for Chatham County

Government sampling of groundwater wells in Chatham County's aquifer 230SDMR shows hardness, measured as calcium and magnesium concentrations, detected in all three sampled wells. The median hardness was 102.0 mg/L, with values ranging from 62.4 to 123.0 mg/L. Here, "detected" means the constituent was measured above the instrument's reporting limit, not that it is an exceedance or violation. The "median" is the middle value of the three samples, representing a central tendency, while the "range" shows the lowest to highest recorded hardness values among the sampled wells. These figures reflect conditions in the sampled area and aquifer, not necessarily in your household water.

If hard water is left untreated over years in a residential system

Hardness minerals can gradually build up in household plumbing, heating elements, and appliances. This can reduce efficiency and lifespan by forming scale, which can insulate surfaces and narrow water pathways. The effect develops slowly over time and varies with water usage and concentration levels. However, these observations do not imply immediate safety concerns but focus on long-term maintenance and efficiency. Addressing hardness proactively can help preserve equipment condition.

If you wonder about the reliability of hardness data from just three wells in Chatham County

The hardness data comes from three groundwater wells sampled between May and August 2012, with depths from 105 to 350 feet. While three samples provide some indication of typical conditions in the 230SDMR aquifer, the small sample size means local conditions may differ significantly in individual wells. This limited scope suggests that testing your own well’s water is essential for precise assessment rather than relying solely on regional samples.

If you receive a certified laboratory water hardness test report for your home well

A certified lab test report for hardness will generally report concentrations of calcium and magnesium ions, often expressed in mg/L as calcium carbonate or as individual elements. Understanding this report requires noting the exact units and comparing values to relevant regional data or guidelines. Since federal standards do not set enforceable limits for hardness, the report serves to inform maintenance decisions rather than safety compliance. Confirming your home water’s hardness level will clarify whether salt-free treatment is appropriate.

If you need to distinguish hardness from other commonly confused water quality issues

Hardness is distinct from dissolved solids, iron, or other mineral-related issues that can affect water taste, color, or staining. Unlike elements such as iron, which can cause discoloration or sediment, hardness primarily impacts scale formation and water feel. Differentiating these requires comprehensive testing since symptoms like deposits or water appearance alone do not confirm hardness levels. Proper identification guides effective treatment.

Next Step: To determine if a salt-free approach to hardness control is right for your household, order a certified laboratory hardness test of your own well or tap water. A result showing hardness within or above the median range found in Chatham County's 230SDMR aquifer indicates that the Pentair Salt-Free Scale Control System can help manage scale buildup without adding salt to your water.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2012-08-02. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.

On record: U.S. Geological Survey sampling of Hardness, Ca, Mg in the 230SDMR aquifer (Chatham County): 3 results from 3 wells, median 102.0 mg/L, range 62.4-123.0 mg/L; none above any federal threshold