Water hardness depends on dissolved calcium and magnesium. The U.S. Geological Survey sampled groundwater in Kent County’s 125RCCS aquifer, measuring hardness in 12 wells from depths of 180 to 380 feet. Their findings provide a regional context, but do not specify the characteristics of any individual household's water supply.
How the Autotrol Hard Water System Treats Hardness
Removes calcium and magnesium ions
The Autotrol Hard Water System works by exchanging hardness minerals—calcium and magnesium—with sodium or potassium ions. This exchange process reduces mineral levels responsible for water hardness, improving water quality for household use.
Prevents scaling and mineral buildup
By lowering hardness minerals, the system helps prevent the scale deposits that commonly form on pipes, fixtures, and appliances, prolonging their lifespan and maintaining efficiency.
Judging Treatment Capacity for Household Daily Demand
Estimate total water use per day
To match a treatment system’s capacity, begin by calculating your household’s average daily water consumption, including bathing, cooking, cleaning, and irrigation.
Consider peak usage periods
Address times when multiple water uses overlap, ensuring the system can handle maximum flow without performance loss.
Reading Certified Laboratory Tests for Hardness
Report units and mineral forms
Lab reports typically express hardness as milligrams per liter (mg/L) of calcium carbonate or total of calcium and magnesium. Understanding units is essential for comparing with regional data or equipment specifications.
Confirm testing methods and sample source
Certified tests reflect the composition of the sampled water source at the time of collection and are the only reliable way to determine your own water’s hardness level.
Variations for Large, Secondary, or Seasonal Residences
Adjust treatment size for larger households
More residents increase daily water usage and demand a system with higher capacity to maintain softening effectiveness.
Consider intermittent use for second or vacation homes
Systems can be configured to suit periods of inactivity, reducing waste and maintaining water quality during absence.
Additional Considerations for Commercial or Industrial Operators
Evaluate continuous flow requirements
Commercial operations may need treatment systems designed for non-stop use and higher volume throughput than typical households.
Account for equipment compatibility and regulatory compliance
Commercial users may have specific requirements beyond hardness removal, including integration with industrial processes or meeting local water quality standards.
Understanding 'Detected,' 'Median,' and 'Range' in USGS Sampling
'Detected' means presence, not a problem or violation
Hardness minerals were found in 11 of 12 sampled wells. Detection only means the minerals are measurable; it is not an indication of safety or compliance issues.
'Median' reflects the central tendency of samples
The median hardness was 134.0 mg/L, representing a midpoint value among the 12 samples collected.
'Range' shows variability in sample results
Results ranged from 50.1 to 154.0 mg/L, indicating the extent of hardness variation within the sampled wells in this area.
None of the sample results exceeded federal thresholds, confirming that hardness levels in the area are typical for groundwater but not a regulatory concern.
Choosing a water softening system begins with understanding your household’s daily water needs, confirming your water’s hardness through certified testing, and matching system capacity accordingly. The Autotrol Hard Water System offers a proven approach for reducing calcium and magnesium hardness, helping maintain water quality tailored to household demand.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-08-20. 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 125RCCS aquifer (Kent County): 12 results from 12 wells, median 134.0 mg/L, range 50.1-154.0 mg/L; none above any federal threshold
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