BioGuard Burnout 73 - 25 lb

Bulk Calcium Hypochlorite Pool Shock for Strong, Reliable Water Clarity - Free Shipping.

BioGuard Burnout 73 is a high-strength calcium hypochlorite pool shock made to superchlorinate swimming pool water, reduce organic contaminants, and help restore clean, sparkling clarity. This 25 lb size is ideal for pool owners, service routes, and commercial or high-use pools that need a larger supply of dependable chlorine shock for routine maintenance and problem-solving treatments.

Formulated with 73% calcium hypochlorite, BioGuard Burnout 73 delivers powerful oxidation in a dry granular formula. It helps treat dull, cloudy, or heavily used pool water by breaking down contaminants that can affect water clarity, freshness, and swimmer comfort.

Use BioGuard Burnout 73 as part of a consistent pool care routine when you need a strong superchlorinating treatment for all pool types.

Key Benefits

• Bulk 25 lb shock size: Great for frequent pool shocking, service accounts, larger pools, and seasonal maintenance.

• 73% calcium hypochlorite formula: Provides high-strength chlorine shock performance for swimming pool water treatment.

• Restores sparkle and clarity: Helps clear dull or cloudy water by reducing organic contaminants.

• Suitable for all pool types: Designed for use in all swimming pools when applied according to label directions.

• Granular shock format: Easy to measure and broadcast into pool water as directed.

• Supports routine and corrective care: Useful for weekly shocking, heavy swimmer load, hot weather, rain recovery, and water clarity issues.

• BioGuard system compatible: Can be used with the BioGuard 3-Step Care System.

Product Details

Compatibility and Requirements

BioGuard Burnout 73 is intended for swimming pool shock treatment and is suitable for all pool types when used as directed. The 25 lb bucket is a strong fit for users who shock frequently, maintain larger pools, or want a bulk supply of calcium hypochlorite shock available throughout the season.

Before application, test and balance pool water. Adjust pH to the recommended range before shocking, keep the pump and filter running, and apply the product at night or when the pool is not in use. Do not swim until the free chlorine residual has dropped to 4 ppm or less, as confirmed by a suitable pool test kit.

How to Use

Routine Shock Treatment

Apply BioGuard Burnout 73 at a rate of 1 lb per 16,500 gallons of pool water, or as directed by the product label. Broadcast the granules evenly over the deep end of the pool while the pump is running.

When to Use

Use for regular pool shocking, especially after heavy pool use, high temperatures, rain, cloudy water, or visible loss of sparkle. For best results, apply at night or when the pool is not in use so the treatment can circulate before swimming resumes.

Safety and Handling Notes

Never add water directly to this product. If dissolving is required by the label, always add product to a large amount of water, never water to product. Do not mix with other chemicals. Keep the pump and filter operating after application, and do not re-enter the pool until free chlorine is 4 ppm or less.

Frequently Asked Questions

What is BioGuard Burnout 73 used for?

BioGuard Burnout 73 is used to shock and superchlorinate swimming pool water. It helps reduce organic contaminants and restore pool water sparkle and clarity.

How much water does the 25 lb size treat?

At the standard rate of 1 lb per 16,500 gallons, a 25 lb bucket provides up to 412,500 gallons of total treatment across multiple applications.

What is the active ingredient?

BioGuard Burnout 73 contains 73% calcium hypochlorite.

Is this a good option for frequent pool maintenance?

Yes. The 25 lb bulk size is well suited for pool owners or service professionals who need multiple shock treatments available for ongoing maintenance.

Can BioGuard Burnout 73 be used in all pool types?

Yes. It is listed as suitable for all pool types when used according to the product label directions