Fix Acidic Water & Blue-Green Copper Stains — pH Neutralizer

Acidic water with a low pH silently attacks your plumbing system, causing lasting damage that results in costly repairs. One of the clearest signs is blue-green staining on sinks and fixtures—this unsightly discoloration actually comes from copper dissolved from your own pipes. Left untreated, acidic water accelerates pipe corrosion, threatening the integrity of your home’s plumbing and water quality.

The system that solves it

Introducing a backwashing calcite pH-neutralizer designed specifically to combat acidic water and protect your plumbing. This system features a corrosion-proof neutralizer tank paired with a non-metallic valve built to resist the harsh effects of low-pH water. The tank holds calcite media blended with Corosex, optimized for neutralizing even very acidic water. Its backwashing capability ensures the media stays clean and effective without manual intervention. You’ll appreciate how simple and affordable it is to maintain—no electricity or additional chemicals are required, making it a reliable and low-cost solution for balancing your water’s pH.

  • Backwashing calcite neutralizer tank with Corosex media
  • Durable, corrosion-proof non-metallic valve and tank construction
  • Automatic operation with minimal maintenance needed
  • No reliance on electricity or chemicals
  • Compatible with trusted Fleck and C-Series neutralizer valve heads

What it does for your home

This system significantly improves your water’s quality while shielding your plumbing from damage. Once installed, you’ll see dramatic changes that protect your investment and improve water safety:

  • Eliminates blue-green copper stains on fixtures caused by dissolved pipe material
  • Protects copper pipes and solder joints from acidic corrosion
  • Balances water pH to a neutral, non-corrosive level
  • Reduces copper and lead concentrations in your drinking water
  • Operates automatically, providing continuous protection without extra effort
  • Delivers these benefits with low operational costs and simple upkeep

By addressing the root cause of plumbing corrosion, this neutralizer helps maintain your home’s water system integrity and ensures cleaner, safer water for your family.

Why it works

The key to this system’s effectiveness lies in the calcite and Corosex media inside the tank. As acidic water flows through, it gently dissolves a precise amount of calcite—a natural mineral that raises the water’s pH by neutralizing acidity. For extremely low-pH water, Corosex is blended in to provide extra alkalinity. This chemical reaction gradually shifts the water toward a balanced, neutral pH level. With the acidic qualities neutralized, the water stops corroding your copper pipes and solder, preventing further damage and reducing metal leaching into your water supply. The backwashing process periodically cleans the media, maintaining its capacity to treat water efficiently over time without manual cleaning or replacement.

Available in every brand we carry. Whichever valve you prefer, the media doing the work is the same — browse Fleck, Autotrol, C-Series, Pentek or Pentair.

Sizing it right

Choosing the correct size neutralizer tank depends on your household water usage and the acidity level of your water. Flow rate and the degree of pH adjustment required are critical factors in selecting a system that will perform optimally without overuse or unnecessary expense. We offer free sizing assistance to help you determine the right neutralizer capacity based on your water test results and daily demand. Proper sizing ensures you get maximum protection and efficiency, keeping your water balanced and your pipes safe without overspending on an oversized system.

Why buy from us

We provide only genuine, industry-trusted hardware from reputable brands like Fleck and C-Series, ensuring your system is reliable and serviceable. Unlike sealed or proprietary units, our neutralizers use standard parts that can be easily maintained and repaired. We offer matched one-brand systems for seamless compatibility and performance. Plus, enjoy free shipping anywhere in the US, so you receive your neutralizer quickly without added cost. Our knowledgeable customer support is ready to assist with sizing, installation tips, and ongoing maintenance advice to keep your system running smoothly for years.

Common questions

Q? How often do I need to maintain or replace the media in the neutralizer?

A The backwashing feature automatically cleans the calcite and Corosex media, significantly extending its lifespan. Routine media replacement is typically rare and depends on your water’s acidity and usage, but periodic inspection is recommended to maintain peak performance.

Q? Will this system add any chemicals or require electricity to operate?

A No. This pH-neutralizer works purely through natural mineral dissolution without adding chemicals or needing electrical power. Its automatic backwashing valve runs on water pressure alone, making it highly reliable and cost-effective.

Q? Can this system handle very low pH water?

A Yes, the blend of calcite with Corosex media is specifically designed to neutralize even strongly acidic water. Corosex provides additional alkaline capacity to bring very low pH water up to a safe, balanced level.

Shop the systems → or ask our water assistant to size and match it.

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