United Chemical Pool Stain Treat Powder 2 lb - Concentrated Spot & Whole‑Pool Stain Remover for Plaster/Vinyl/Fiberglass

United Chemicals 2 lb Pool Stain Treat is a concentrated, single‑pack formula designed to remove common pool stains and restore a clean finish to plaster, vinyl, and fiberglass surfaces.

Whether you're tackling discoloration from metals, organic debris, or mineral buildup, this 2‑pound container of Pool Stain Treat (PST‑C12) offers a ready‑to‑use option for targeted stain control. The powder formulation dissolves into pool water when applied according to label directions, working to break down and disperse the compounds that cause visible staining. It is intended for spot treatments and full‑pool stain programs depending on severity and pool type.

How does this product remove stains from different pool surfaces?

The formulation targets the molecules and deposits that adhere to pool finishes rather than mechanically scraping them away. When dissolved and applied properly, the treatment helps lift stains free from surfaces so they can be filtered or brushed away. It's compatible with common surfaces but always test a small area first.

• Suitable for plaster, concrete, vinyl, and fiberglass when used per instructions.
• Works on metal discoloration, organic stains (leaves, algae residue), and mineral deposits.
• Designed for spot treatment and whole‑pool applications depending on stain severity.

How do I apply United Chemicals Pool Stain Treat safely and effectively?

Read the product label thoroughly before use and follow dilution and application guidance provided. Typical steps include lowering the pool pH into the recommended range, preparing the treatment solution, applying to affected areas, and running filtration to remove loosened residue. Use personal protective equipment—gloves and eye protection—when handling concentrated powder.

• Adjust pool chemistry first (check pH and alkalinity) to optimize performance.
• Dissolve the required amount in water and apply to stains or broadcast evenly for widespread issues.
• Run the filter continuously until water clears; brush stained areas to aid removal.

What should I expect after treatment and how long does it take to see results?

Results vary with stain type and age; some spots may lift within hours, while entrenched stains can take multiple treatments over days. After application, you may notice gradual fading of discoloration as particles detach and are removed by the filter or manual brushing. If stains persist, repeat applications or professional evaluation may be needed.

• Light, recent stains often respond within 24–48 hours.
• Older or metal‑rich stains may require multiple treatments spaced per label guidelines.
• Follow‑up brushing and filtration improve visible results and speed clearance.

Who is this for: United Chemicals 2 lb Pool Stain Treat is intended for pool owners, maintenance professionals, and service technicians who need a concentrated, easy‑to‑store stain removal product. It suits residential and small commercial pools with common surface types (plaster, vinyl, fiberglass) and is particularly useful when targeted spot treatments are preferred over large volume dosing. Always consult the label for compatibility, mixing instructions, and safety precautions before applying to your pool.