How Treated Water Differs at the Tap with the Pentair Iron + Hard Water (Well) System
Laboratory reports for hardness typically list concentrations of calcium and magnesium ions, measured in milligrams per liter (mg/L). In Navajo County’s aquifer 220NAVJ, government sampling found hardness ranging broadly from 1.23 to 163.0 mg/L with a median near 2.935 mg/L. This variability means that untreated water in homes may range from very soft to moderately hard. Iron, while not quantified here, often accompanies hardness in groundwater and can cause discoloration or staining.
Once water passes through the Pentair Iron + Hard Water (Well) System, the treated water is notably different at the tap. This system is designed to reduce the impact of hardness minerals and iron content, helping to prevent scale buildup and staining. Users typically notice clearer water with fewer mineral deposits on fixtures and improved soap performance, although individual results depend on specific water conditions.
The Role of Plumbing Material and Age Separate from Source Water
The materials and age of the household plumbing system can influence how hardness and iron affect water quality, independent of the source water itself. Older pipes, especially if made from metals prone to corrosion, may react with mineral-rich water differently than newer materials. For example, iron present in water can oxidize and cause reddish-brown staining on older iron or steel pipes, which does not directly reflect the raw water quality but the plumbing interaction.
Plastic or copper plumbing tends to resist such staining and corrosion issues, but scale buildup from hardness minerals can still occur within any piping system. Therefore, when assessing water problems, it is important to consider both the source water composition and the plumbing characteristics separately.
How Sample Depth, Well Depth, or Source Type Changes Expectations
The US Geological Survey samples in Navajo County came from wells varying greatly in depth, between 554 and 3,737 feet deep, which affects the water chemistry. Deeper wells often access older groundwater that may have different hardness and iron concentrations compared to shallower sources. This range in depth is reflected in the wide hardness variations observed.
Households drawing water from shallower private wells may experience different hardness levels or iron content than the regional median. Public water systems drawing from surface water or shallower aquifers might have more treatment steps or different mineral profiles. Testing your own water is essential to know precisely what is in your specific supply.
What Happens When Iron and Hardness Are Left Untreated for Years
Untreated hardness and iron in household water can lead to several practical issues over time. Hardness minerals, such as calcium and magnesium, contribute to scale buildup on pipes, water heaters, and appliances, reducing their efficiency and lifespan. Iron can cause reddish staining on sinks, bathtubs, and laundry, and may impart a metallic taste.
While the regional sampling from Navajo County found no concentrations above federal health thresholds, these aesthetic and operational concerns can persist and worsen without appropriate treatment. Addressing hardness and iron early can prevent costly maintenance and improve water appearance and usability.
How to Judge Treatment Capacity Against Household Daily Demand
The Pentair Iron + Hard Water (Well) System has a documented grain capacity of 32,000 grains. This capacity denotes the amount of hardness and iron minerals it can remove before requiring regeneration or maintenance. To match your household’s daily water use and hardness levels, you would need to estimate total grains removed per day, factoring in the concentration of hardness and iron in your water and your water consumption.
For example, a family with moderate hardness and average water use might find this system sufficient for continuous use. Larger households or those with very hard water may need to assess capacity needs carefully and consider water testing to optimize system effectiveness.
Summary of Regional Water Sampling and Reference Source
The US Geological Survey’s groundwater sampling in Navajo County’s aquifer 220NAVJ, spanning 14 wells sampled over nearly a decade, shows a range of hardness from 1.23 to 163.0 mg/L, all below federal limits, confirming that iron and hardness levels vary widely but are within measured standards. This data provides a regional context but does not define any individual well’s quality. For precise water treatment decisions, testing your household water is recommended. More details can be found at the USGS monitoring location 363558110392501.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-08-23. 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 220NAVJ aquifer (Navajo County): 40 results from 14 wells, median 2.935 mg/L, range 1.23-163.0 mg/L; none above any federal threshold