Description
BioGuard Scale Inhibitor - 1 Quart
Concentrated Scale and Metal Stain Protection for Pool Water
BioGuard Scale Inhibitor is a concentrated pool treatment designed to help prevent scale build-up, reduce cloudy water caused by high calcium levels, and protect pool equipment and surfaces from scale and metal stains. This 1 quart bottle is a practical choice for pools with high calcium hardness, metal-containing source water, or recurring scale and staining issues.
Scale can form on pool surfaces, piping, filtration equipment, and heating elements when water contains high calcium levels or is not properly balanced. BioGuard Scale Inhibitor helps control those issues by preventing scale formation and helping remove some fresh metal stains and scale deposits before they become more difficult to treat.
Use BioGuard Scale Inhibitor for initial treatment, monthly maintenance, or fresh stain removal in chlorine- or bromine-treated pools.
Key Benefits
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Prevents scale build-up: Helps control scale caused by high calcium levels.
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Helps remove fresh stains: Can help remove fresh metallic stains less than 5 days old.
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Protects pool equipment: Helps protect piping, filtration equipment, and heating elements from scale and metal stains.
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Targets metal staining: Helps prevent stains caused by iron, copper, and manganese.
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Helps reduce cloudy water: Supports clearer water where high calcium levels may contribute to cloudiness.
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Concentrated formula: 1 quart treats 10,000 gallons for initial treatment or fresh stain removal.
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Monthly maintenance support: Continues working for approximately 3 to 4 weeks after application.
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Compatible with chlorine and bromine pools: Designed for use in chlorine- or bromine-treated swimming pools.
Product Details
Compatibility and Requirements
BioGuard Scale Inhibitor is designed for chlorine- or bromine-treated swimming pools where scale, metals, or high calcium levels may cause surface staining, cloudy water, or equipment build-up. It is especially useful for pools in areas with hard water or fill water that contains metals.
For best results, clean or backwash the filter before initial treatment. Apply the product directly to pool water with the pump running, then continue circulation for 24 to 48 hours after the initial dose. For ongoing protection, use monthly in pools that experience recurring hardness, scale, or metal staining issues.
How to Use
Initial Treatment
Clean or backwash the filter according to the manufacturer’s directions. With the pump running, add 1 quart of BioGuard Scale Inhibitor per 10,000 gallons of pool water directly into the pool. Continue running the pump for 24 to 48 hours after application.
Monthly Maintenance
For ongoing scale and stain prevention, add 16 fl oz per 10,000 gallons once per month. Add directly to pool water with the pump running.
Fresh Metal Stain Removal
For fresh metallic stains less than 5 days old, add 1 quart per 10,000 gallons directly in the stained area. Brush the stained area daily for 3 to 5 days. Large stains may require repeat treatment.
Important Notes
Some older or deeply embedded stains may not be fully removable with routine treatment. For aged stains on white plaster pools, professional evaluation or acid washing may be required. Always read and follow the product label before use.
Frequently Asked Questions
What does BioGuard Scale Inhibitor do?
BioGuard Scale Inhibitor helps prevent scale build-up from high calcium levels and helps prevent metal stains caused by iron, copper, and manganese.
Can it remove existing scale?
It can help remove some fresh scale and fresh metallic staining. Older or severe deposits may require repeat treatment or professional service.
How often should I use it?
For pools with recurring hardness, metals, scale, or staining issues, use 16 fl oz per 10,000 gallons once per month.
Will it affect pool pH?
Product information states that BioGuard Scale Inhibitor will not affect pH.
What pool types is it compatible with?
BioGuard Scale Inhibitor is listed for chlorine- or bromine-treated pools.

