Copper & Blue-Green Stain Solution

Stop blue-green copper staining

Blue or blue-green stains in sinks, tubs, and toilets are a warning sign: your water is corrosive and is dissolving copper out of your own plumbing. The culprit is almost always low pH (acidic water), and beyond the unsightly staining it slowly eats away at pipes and fittings, eventually causing pinhole leaks and costly damage.

Treat the cause, not just the stain

Because the staining comes from your water attacking the pipes, the lasting fix is to correct the water's chemistry rather than to filter out copper downstream. This system neutralizes acidic water so it stops corroding copper in the first place.

How it works

Water flows through a bed of neutralizing media that gently raises the pH toward a balanced range, making the water far less aggressive toward copper and other metals. A scheduled backwash keeps the bed active, and media is topped up periodically as it is consumed. The right media and refill interval depend on how acidic your water is.

Key points

• Test your pH: confirming acidic water pinpoints the cause.
• Protects plumbing: prevents pinhole leaks, not just stains.
• Media is consumable and replenished over time.

Send us your pH and water test and we will confirm the neutralizer and size it to your flow. Ships free in the US with manuals and expert support to protect your pipes and end blue-green staining for good.

Reading the warning signs

Blue-green staining is often the first visible symptom of acidic water, but the more serious consequences are hidden: copper and other metals slowly leaching into your drinking water and pipe walls thinning until pinhole leaks appear. Homes with copper plumbing and low-pH well water are especially prone. A simple pH test confirms the cause and lets us target the correction precisely.

Protecting your whole plumbing system

By raising pH at the point of entry, the neutralizer protects every run of pipe and every fixture in the house, not just the ones where staining shows. The media is gradually consumed and topped up over time, and we help you plan that upkeep, provide the manuals for installation, and stay available so corrosive water stops damaging your home.