When nitrate and nitrite contaminate your well water, the risks go far beyond unpleasant taste and odor. These compounds, often invisible and odorless, can lead to serious health concerns—especially for infants and pregnant women—while also corroding plumbing fixtures and appliances. Left unaddressed, nitrate and nitrite buildup can turn your home’s water supply into a source of constant worry, costly repairs, and compromised family wellbeing.

The system that fixes it

Introducing the Fleck Nitrate & Nitrite (Well) System, engineered specifically to tackle the hidden dangers lurking in nitrate and nitrite contaminated well water. At its core is the renowned Fleck 5810 SXT metered control valve, a precision instrument designed to optimize water treatment cycles by measuring water usage accurately and regenerating the system only when necessary. This means you get efficient, consistent performance without wasting water or salt—and the resilience to handle fluctuating water conditions.

The system is built around a specialty ion-exchange tank designed for durability and optimal flow, combined with nitrate-selective anion resin media. This advanced resin not only exchanges harmful nitrate and nitrite ions out of your water but also locks them in securely, preventing release even during sulfate spikes, a common challenge in well water chemistry.

• Fleck 5810 SXT metered control valve ensures water-efficient, demand-initiated regeneration tailored to your home’s unique water use.
• Robust, specialty ion-exchange tank engineered for maximum media contact and long-lasting operation.
• Nitrate-selective anion resin specifically formulated to remove nitrate and nitrite while withstanding sulfate interference.
• Compact design fits easily into your existing plumbing setup without major renovations.
• Serviceable brand valve allows for easy maintenance and long-term reliability, minimizing downtime and repair costs.

Pick your size

Choose the size that matches your household’s bathroom count to ensure effective nitrate and nitrite removal and reliable water quality for your family.

What it does for your home

• Delivers clean, clear water free from harmful nitrate and nitrite contaminants.
• Protects infants and vulnerable family members from serious health risks like methemoglobinemia (“blue baby syndrome”).
• Prevents corrosion and staining caused by excessive nitrate and nitrite exposure to plumbing fixtures.
• Reduces bad tastes and odors associated with well water nitrate contamination.
• Helps extend the lifespan of water-using appliances by providing purified water.
• Ensures peace of mind by maintaining consistent water quality without complicated maintenance routines.

This system transforms potentially hazardous well water into a safe, refreshing resource for your entire household.

How the media works

The nitrate-selective anion resin inside your Fleck system is the heart of its effectiveness. This specialized resin beads use ion-exchange chemistry to pull nitrate and nitrite ions from the water as it passes through the tank. Essentially, these harmful ions swap places with less harmful chloride ions held by the resin. What makes this media unique is its selectivity—it is designed to target nitrate and nitrite specifically, even when sulfate levels rise in your well water, which often interferes with other treatment methods. By securely holding onto the nitrate and nitrite, the resin stops these pollutants from ever reaching your tap, providing a clean water supply you can trust.

Why buy this system from us

• Equipped with genuine Fleck brand hardware known for serviceability and longevity.
• Free sizing support tailored to your household’s water needs across the U.S.
• Free shipping anywhere in the U.S. for convenient doorstep delivery.
• All components matched from one trusted brand for seamless compatibility and performance.

Common questions

Q? How does nitrate and nitrite contamination affect my family’s health?
A Nitrate and nitrite in well water can cause serious health issues, particularly for infants who are at risk of methemoglobinemia, also known as “blue baby syndrome,” which interferes with oxygen transport in the blood.

Q? Why is the Fleck 5810 SXT control valve important?
A This valve meters your water usage and regenerates the system only when needed, reducing salt and water waste while maintaining optimal nitrate and nitrite removal efficiency.

Q? Can this system handle sulfate spikes often found in well water?
A Yes, the nitrate-selective anion resin is designed to retain nitrate and nitrite during sulfate spikes, ensuring stable performance even when water chemistry fluctuates.

Shop the Fleck Nitrate & Nitrite (Well) System →

Prefer another valve brand? The same fix comes in Fleck, Autotrol, C-Series, Pentek and Pentair.