Natural Chemistry Stain Free Extra Strength
Eliminate Severe Metal Stains Without Draining the Pool
When standard stain treatments are not enough, Natural Chemistry Stain Free Extra Strength provides a higher-powered solution for severe and stubborn metal staining. This professional-grade pool stain remover uses an enhanced ascorbic acid–based formula to aggressively lift iron, copper, and mineral stains from pool surfaces without draining the water.
Designed for heavily stained pools or repeated metal exposure, Stain Free Extra Strength restores surface appearance quickly while remaining safe for common pool finishes when used correctly.
Extra-Strength Ascorbic Acid Formula
Natural Chemistry Stain Free Extra Strength is formulated with a higher concentration of ascorbic acid to tackle deep-set or widespread metal staining. It works by neutralizing metal oxidation and releasing stains from the surface so they can be removed through circulation and filtration.
This makes it especially effective for pools affected by well water, metal-based algaecides, corroded equipment, or repeated staining cycles.
Why Extra-Strength Stain Removal Matters
Severe metal staining often returns if not fully treated, leading to repeated cosmetic and water quality issues.
Why it matters:
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Removes heavy iron and copper stains more effectively
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Restores heavily discolored pool surfaces
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Reduces the need for acid washing
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Helps break ongoing metal stain cycles
Safe for Common Pool Surfaces
Natural Chemistry Stain Free Extra Strength is compatible with:
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Plaster pools
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Vinyl liner pools
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Fiberglass pools
When applied according to instructions, it will not etch or damage surfaces. Proper chemical preparation and follow-up treatment are essential for best results.
Application Notes
Before application, reduce chlorine levels and adjust water balance as directed. Add Stain Free Extra Strength directly to stained areas or broadcast across the pool for full-surface treatment. After stains are lifted, follow with a metal sequestrant to keep metals suspended and prevent restaining.
Do not shock or heavily chlorinate immediately after treatment.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Natural Chemistry Stain Free Extra Strength |
| Product Type | Extra-strength pool stain remover |
| Active Ingredient | Ascorbic acid |
| Target Stains | Iron, copper, severe metal stains |
| Surface Compatibility | Plaster, vinyl, fiberglass |
| Application | No-drain stain removal |
| Brand | Natural Chemistry |
Buy with Confidence from Benchmark Pool Supply
When you purchase Natural Chemistry Stain Free Extra Strength from Benchmark Pool Supply, you’re getting a professional-grade solution backed by real-world experience. We help pool owners and service professionals choose the right stain treatment and the proper follow-up products to keep pools looking clean long-term.
Our Fresno team is available to help identify stain severity and guide proper treatment steps.
