Living with well water contaminated by arsenic and nitrates is more than a nuisance—it’s a daily challenge that threatens your family’s health and your home’s integrity. You see stubborn stains on fixtures and laundry, detect unpleasant odors that don’t seem to wash away, and worry silently about the unseen toxins lurking in every glass of water. The risk of corrosion eats away at your plumbing, and the constant concern over nitrate levels from nearby septic systems or farms can leave you anxious about long-term exposure. You deserve a solution that not only removes these contaminants but does so reliably and efficiently.

The matched package

The Pentair Well Contaminant & Health System is a comprehensive, expertly engineered multi-stage solution designed specifically for well water plagued by arsenic and nitrate contamination. What sets this package apart is its use of premium Pentair-series control valves at every stage, all built on a single, matched platform to ensure seamless operation, simple maintenance, and consistent performance. This means each treatment step is perfectly tuned to work together, delivering superior water quality without the guesswork or compatibility issues that come with mixed-brand systems. From initial sediment filtration to advanced nitrate-selective treatment, every component is designed to safeguard your water and health.

Every stage, explained

The journey to cleaner well water begins with the sediment pre-filter stage. This initial layer acts as a robust barrier against sand, grit, and other suspended particles that your well pump inevitably draws up. By intercepting these abrasive contaminants early, the sediment filter protects downstream equipment from premature wear and prevents clogging that could reduce flow or damage components. Its premium Pentair control valve ensures precise filtration and easy maintenance, keeping your entire system running smoothly.

The next critical stage is the arsenic removal system, which targets the hazardous Arsenic III and V forms often found in well water. Arsenic is a silent threat linked to serious health risks, and its removal requires specialized media that binds these contaminants effectively. Pentair’s advanced control valve precisely regulates flow and backwash cycles to maximize media lifespan and treatment efficiency, ensuring that arsenic levels are reduced well below health advisory limits. This stage is indispensable for protecting your family from long-term exposure to toxic arsenic.

Following arsenic treatment, the nitrate-selective system addresses one of the most common agricultural pollutants affecting well water: nitrates. Elevated nitrate concentrations pose significant health dangers, particularly for infants and pregnant women. This stage employs a selective resin that specifically targets and removes nitrate ions without stripping beneficial minerals or altering pH. The Pentair valve platform maintains exact flow control and regeneration timing to optimize nitrate removal, even in wells impacted by nearby septic systems or farming runoff. This precision ensures your water remains safe and pleasant to use every day.

For those who want bottled-water quality straight from the tap, the under-sink reverse-osmosis add-on transforms treated water into crystal-clear, great-tasting drinking water. This compact system removes any remaining dissolved solids, odors, or residual contaminants, giving you peace of mind and refreshing water at the kitchen faucet. Integrated with Pentair’s trusted hardware, it complements the whole-house system perfectly for comprehensive protection where it matters most: the water you drink.

Why the install order matters

Installing these treatment stages in the correct sequence is crucial for performance and longevity. The general well water treatment rule involves adjusting low pH first with a neutralizer, then removing iron and sulfur to prevent fouling later stages, softening the water to protect plumbing and appliances, applying disinfection or UV treatment to kill microbes, and finally adding reverse osmosis for drinking water purity. In this package, starting with sediment filtration protects all subsequent stages from abrasive particles. Next, arsenic must be removed before nitrate treatment to avoid interference. This ordered approach ensures each system operates at peak efficiency without damaging or overwhelming the next stage, resulting in a reliable, long-lasting installation tailored to your well’s unique chemistry.

Why one brand

Choosing a matched system from Pentair means every control valve and component shares the same design philosophy, software interface, and replacement parts. This unified platform simplifies programming, streamlines service calls, and reduces the risk of incompatibility that can arise when mixing brands. For you, this translates to less downtime, easier maintenance, and confidence that your entire water treatment package works as a cohesive team. One brand means one trusted service path and one clear story for your water’s safety and quality.

What it does for your home

• Eliminates harmful arsenic III & V contaminants for safer water
• Removes nitrates common in agricultural and septic-affected wells
• Protects plumbing and appliances from abrasive sand and grit
• Reduces staining and corrosion on fixtures and clothing
• Delivers consistent, reliable treatment with matched control valves
• Provides optional bottled-quality water at your kitchen faucet
• Minimizes maintenance with easy programming and parts access

The Pentair Well Contaminant & Health System transforms your well water from a risk to a resource your whole household can trust.

Sized free to your well

Every well is unique, which is why we tailor this Pentair package specifically to your water profile. Send us your latest well water test results, and our experts will customize the sizing of each stage to optimize contaminant removal and system lifespan. We ensure the package you receive fits your home’s flow demands and water chemistry perfectly. Plus, enjoy free shipping anywhere in the US—so your matched Pentair solution arrives ready to install without extra cost or hassle.

Common questions

Q? How do I know if my well water has arsenic or nitrates?
A well water test is the only reliable way to identify arsenic and nitrate contamination. We recommend periodic testing through certified labs, especially if you live near farms or septic systems, to catch these health risks early.

Q? Can this system remove iron and sulfur odors too?
While this package focuses on arsenic and nitrates, the sediment pre-filter helps reduce sand and grit, and proper installation order allows for adding iron removal or neutralization systems if needed. Contact us to discuss a customized solution.

Q? What maintenance does the Pentair system require?
The matched Pentair valves simplify upkeep with automated backwash cycles and easy media replacement. Routine checking every few months ensures optimal performance, and our support team is available for guidance and service.

See the Pentair Well Contaminant & Health System →