Metal staining is one of the most frustrating pool problems because it often appears suddenly and is difficult to remove once it sets. Brown, green, or black stains caused by iron, copper, and other dissolved metals can make an otherwise clean pool look neglected. Applied Biochemists Staintrine is designed to both prevent metal staining before it starts and remove existing stains safely without damaging pool surfaces.

This professional-grade stain preventer and remover is widely used by pool service technicians to control metal-related staining during startups, refills, and ongoing maintenance. Staintrine works by sequestering dissolved metals in the water, keeping them suspended so they cannot attach to pool surfaces or oxidize into visible stains.

Why Metal Stain Control Matters

Metals enter pool water more often than most pool owners realize. Source water, aging plumbing, heaters, and certain pool chemicals can all introduce iron and copper into the system. Once metals oxidize, they bond to surfaces and become extremely difficult to remove.

Proper metal control matters because it helps:

• Prevent unsightly iron and copper staining

• Protect plaster, fiberglass, and vinyl finishes

• Reduce the need for aggressive acid treatments

• Maintain clean, uniform pool appearance during refills

Applied Biochemists Staintrine allows you to manage metals proactively instead of reacting after stains appear.

How Applied Biochemists Staintrine Works

Staintrine uses a specialized sequestrant formula that binds to dissolved metals such as iron, copper, and manganese. Once bound, these metals remain suspended in the water and are unable to oxidize or attach to pool surfaces.

This process prevents new stains from forming and gradually helps lift and fade existing metal stains when used as part of a proper maintenance program. Because it works chemically rather than abrasively, Staintrine does not etch surfaces or disrupt water balance when used according to label directions.

When to Use Applied Biochemists Staintrine

Staintrine is most effective when used in specific situations where metal staining is likely or already present, including:

• Pool startups and fresh refills

• Pools filled with well water or metal-prone municipal water

• After shocking or oxidizing treatments

• Ongoing maintenance for pools with known metal issues

• Treating visible iron or copper staining

It is especially valuable as a preventative treatment, where consistent use can stop stains from forming altogether.

Compatibility with Pool Systems & Surfaces

Applied Biochemists Staintrine is safe for use in all common pool types and finishes. It is compatible with chlorine pools, saltwater pools, and professionally maintained systems.

It can be used safely on plaster, pebble, fiberglass, and vinyl-lined pools, and it works alongside cartridge, sand, and DE filtration systems. When used properly, it will not cloud water or interfere with sanitizer effectiveness.

Professional-Grade Metal Control

Unlike diluted consumer stain treatments, Staintrine is formulated for professional performance. Pool service companies rely on it because it provides consistent metal control, predictable dosing, and long-term stain prevention when maintained properly.

This makes it an ideal solution for pools that regularly struggle with metals due to source water or equipment conditions.

Application & Maintenance Best Practices

For best results, Staintrine should be added to circulating water and allowed to distribute evenly throughout the pool. Regular testing and maintenance dosing help ensure metals remain sequestered over time.

Because sequestrants slowly break down, periodic reapplication is important for ongoing stain prevention, especially in pools with high metal exposure.

Always follow manufacturer label instructions for dosage and frequency.

Product Information

Buy with Confidence from Benchmark Pool Supply

When you purchase Applied Biochemists Staintrine from Benchmark Pool Supply, you’re getting a professional-grade stain control solution backed by real pool expertise. We stock products trusted by service technicians and serious pool owners, with knowledgeable support from our Fresno location and fast online ordering.

You can trust you’re buying the right chemical, stored correctly, and supported by people who understand pool water chemistry.