When your water is acidic or low in pH, it doesn’t just taste off — it silently eats away at your home. Corroded pipes lead to leaks and costly repairs, dishwasher and washing machine parts degrade faster, and your fixtures develop stubborn stains and buildup. Left untreated, acidic water can even affect your skin and hair, leaving you feeling dry and uncomfortable. This hidden menace is undermining your comfort, health, and wallet day by day.

The system that fixes it

The Fleck Acidic / Low-pH Water System tackles the root of the problem with precision and reliability. At its core is the Fleck 5600 SXT backwashing control valve, a genuine, serviceable brand valve known for its durability and advanced programming. This valve expertly manages the system’s regeneration cycles and backwashing processes, ensuring the media stays effective and your water quality remains consistent. Built on a robust upflow calcite tank, the system uses a specialized media blend of calcite and Corosex that gradually dissolves to gently raise your water’s pH, neutralizing acidity before it can cause damage.

• Fleck 5600 SXT Control Valve: Reliable digital control for efficient backwashing and regeneration to maintain optimal media performance.
• Upflow Calcite Tank: Designed to maximize contact time between water and media, increasing the pH correction effectiveness.
• Calcite + Corosex Media Blend: Dissolves trace amounts of calcite to naturally elevate water pH, preventing corrosion and metal leaching.
• Serviceable Components: Easy-to-maintain valve and media replacement prolong system life and protect your investment.
• Consistent pH Adjustment: Protects plumbing, appliances, and skin without harsh chemicals or additives.

Pick your size

Select the size that matches your home’s bathroom count to ensure your system delivers the right volume and capacity, giving you consistent protection and balanced pH across all your water outlets.

What it does for your home

• Prevents corrosion and rust buildup in pipes, extending plumbing lifespan.
• Stops staining and etching on sinks, tubs, and shower surfaces.
• Protects household appliances from acidic water damage and mineral scaling.
• Reduces metallic taste and unpleasant odors caused by low-pH water.
• Improves skin and hair hydration by neutralizing acidic water’s drying effects.
• Saves money by avoiding costly repairs and premature appliance replacements.

The Fleck Acidic / Low-pH Water System transforms your water from corrosive to clean and gentle, safeguarding your entire home environment.

How the media works

The heart of this system is its specialized media blend inside the tank: pure calcite mixed with Corosex. As acidic water flows upward through this media, a small amount of calcite dissolves naturally, gently raising the water’s pH to a neutral or slightly alkaline level. Corosex, containing magnesium oxide, assists in balancing more strongly acidic water. This slow and steady mineral release neutralizes acidity, preventing it from corroding pipes or dissolving harmful metals. Unlike chemical treatments, this natural mineral process ensures your water stays safe and balanced, without harsh additives or side effects.

Why buy this system from us

• Genuine Fleck Hardware: Includes the trusted, serviceable Fleck 5600 SXT valve for easy maintenance and long service life.
• Free Sizing Advice for US Homes: We help you pick the perfect system size at no cost, ensuring thorough pH correction.
• Free Shipping Across the US: Delivered straight to your door without extra fees or hassle.
• One-Brand Matched Components: The entire system is designed to work seamlessly together, optimizing performance and reliability.

Common questions

Q? How do I know if my water is acidic or low-pH?
A: Signs include bluish-green stains on plumbing fixtures, metallic taste in water, dry skin, and premature appliance wear. A simple pH test can confirm if your water’s pH is below 7, indicating acidity.

Q? Will this system add minerals to my water?
A: The system gently dissolves calcite minerals to raise pH, but it does not add harmful substances. The process balances acidity naturally without causing hardness or scaling.

Q? How often does the system require maintenance?
A: The Fleck 5600 SXT valve is user-friendly and serviceable. Media replacement intervals vary but generally occur every few years depending on water usage and acidity levels. Regular backwashing keeps the media clean and effective.

Shop the Fleck Acidic / Low-pH Water System →

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