Blue-green stains creeping around your sinks, tubs, and faucets are not just unsightly—they signal copper corrosion eating away at your plumbing. This corrosion can lead to costly pipe damage, reduced water flow, and a persistent metallic taste that disrupts your family’s comfort. Ignoring these telltale blue-green marks risks expensive repairs and compromises the safety of your home’s water supply.

The system that fixes it

The Pentair Blue-Green Copper Stains System is engineered specifically to halt the damaging effects of acidic water that leaches copper from your pipes, causing those stubborn blue-green stains. At its heart is a robust Pentair-series backwashing control valve—a genuine, serviceable brand valve designed to ensure continuous, trouble-free operation. This valve automatically initiates backwashing cycles, flushing the tank’s media to maintain peak performance and extend the system’s lifespan. Built around a durable upflow calcite tank, the system uses high-quality calcite neutralizing media. This media steadily raises the water’s pH, neutralizing acidity to stop the corrosive process responsible for dissolving copper and depositing blue-green residues.

• Advanced Pentair backwashing control valve: Ensures efficient media cleaning for long-term reliability.
• Upflow calcite tank construction: Supports optimal media contact, enhancing neutralization effectiveness.
• Premium calcite neutralizing media: Elevates pH to prevent copper corrosion at the source.
• Serviceable brand components: Genuine parts easily maintained or replaced to keep your system running smoothly.
• Consistent performance: Designed to protect plumbing and improve water quality day after day.

Pick your size

Select the size that matches your household’s bathroom count to ensure effective treatment tailored to your water usage and stain severity.

What it does for your home

• Eliminates blue-green stains caused by copper corrosion for a cleaner, more attractive home.
• Prevents further pipe damage, extending the lifespan of your plumbing system.
• Improves water taste and clarity by neutralizing acidic water conditions.
• Reduces costly repairs and maintenance related to copper leaching.
• Protects fixtures and appliances from corrosion-related wear and discoloration.
• Creates a healthier environment by minimizing copper exposure in your water.

With the Pentair Blue-Green Copper Stains System, your home enjoys peace of mind and pristine water free from the corrosive effects that tarnish plumbing and threaten comfort.

How the media works

The heart of this system’s effectiveness lies in its calcite neutralizing media. This natural mineral dissolves slowly into your water, raising its pH level to reduce acidity. Acidic water aggressively corrodes copper pipes, leaching copper ions that lead to the distinctive blue-green stains. By elevating the pH, the calcite media creates an environment where copper remains stable and intact within your plumbing. This process doesn’t just mask the symptoms—it directly addresses the root cause, stopping stains from forming and halting further corrosion. Over time, this means cleaner water, unblemished fixtures, and a plumbing system that stays strong and healthy.

Why buy this system from us

• Equipped with a genuine, serviceable Pentair control valve for dependable, long-lasting operation.
• Free sizing assistance from US-based experts to match your water needs perfectly.
• Complimentary shipping anywhere in the US, making the entire purchase convenient and cost-effective.
• A matched one-brand system ensuring components work seamlessly together for optimal performance.

Common questions

Q? How quickly will I see a reduction in blue-green stains after installing the system?
A The system begins neutralizing acidic water immediately, so you can expect a noticeable reduction in blue-green staining within weeks as the corrosion process slows and existing deposits fade.

Q? Can this system handle water with severe acidity causing heavy copper staining?
A Yes, the Pentair Blue-Green Copper Stains System is designed with varying sizes and media amounts to effectively treat acidic water conditions across different household sizes, ensuring even severe cases are addressed.

Q? How important is the Pentair-series backwashing control valve in maintaining system performance?
A The genuine Pentair valve automates media cleaning cycles, preventing clogging and maintaining consistent pH adjustment. Using a serviceable, brand-specific valve means easier maintenance and a longer-lasting system.

Shop the Pentair Blue-Green Copper Stains System →

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