Doheny’s Super Pool Shock, Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock
Best high-strength shock for pool owners seeking quick, mess-free water maintenance.
Keep your pool sparkling clean with Doheny’s Super Pool Shock. This pro-grade, fast-acting granular shock features 68% calcium hypochlorite, delivering a powerful 65% available chlorine to quickly eliminate algae and contaminants. Designed for ease of use, it comes in convenient pre-measured 1lb bags, eliminating the need for messy measuring. Simply use one bag per 10,000 gallons for effective pool maintenance. Trust Doheny’s, a family-owned business with over 50 years of expertise, for reliable pool care solutions.
$243.79
Owner Satisfaction
4.6
/ 5
Category Rank
118
/ 1319
#118 in Pool Cleaners & Chemicals
Price vs Category Average
+258%
Above average
Active Ingredient
Calcium hypochlorite
/ Calcium hypochlorite
Who it's for
- Pool owners battling stubborn algae or cloudy water
- Swimmers wanting to return to the pool quickly
- Maintenance pros seeking a proven, reliable sanitization method
Who should skip it
- Owners who dislike frequent water chemistry adjustments
- Residents in regions with naturally hard water
- Users preferring low-maintenance, hands-off chemical application
Performance breakdown
Sanitization Potency
High 65% available chlorine content makes quick work of stubborn algae.
Application Convenience
Pre-measured bags eliminate guesswork and prevent messy chemical spills.
Dissolution Speed
Granular formula breaks down rapidly for immediate water treatment.
Bulk Value
Large capacity buckets provide a cost-effective solution for seasonal pool maintenance.
Formula Stability
Calcium hypochlorite remains highly effective when stored in dry conditions.
Treatment Versatility
Reliable performance across various pool sizes and common contamination levels.
Key Specs
Active Ingredient
Calcium hypochlorite
Concentration
68% calcium hypochlorite
Available Chlorine
65%
Item Weight
50 Pounds
Item Form
Granular
Dosage
1lb per 10,000 gallons
Unit Count
800 Ounce
Net Contents
50lb (2 x 25lb Buckets)
Features
- Instantly boosts chlorine to kill algae.
- Powerful 68% calcium hypochlorite formula.
- Pre-measured bags for easy application.
- Effective dosage for clear water.
- Trusted quality from a family supplier.
- Fast-acting for quick results.
- Granular form for simple use.
What customers say
Customers consistently praise Doheny’s Super Pool Shock for its exceptional reliability and potent performance, viewing it as a professional grade solution. The core strength is its powerful 68% Calcium Hypochlorite, which users report clears severe cloudiness and algae rapidly, often overnight. Its quick dissolving granular form is highly valued because it applies cleanly without leaving residue or staining surfaces, simplifying maintenance. Although priced higher than alternatives, users feel the superior effectiveness justifies the cost, offering strong perceived value. Because the shock is so potent, less product is often needed per treatment. This product is clearly a trusted choice for pool owners demanding professional level results and consistent clarity.
Know before you buy
The recommended dosage is one 1lb bag per 10,000 gallons of pool water. For a standard pool, simply calculate your total gallon capacity to determine how many bags to add.
It is best to wait until the chlorine levels drop back to a safe range, typically between 1 and 3 ppm. We recommend waiting at least 8 to 24 hours after application before re-entering the water.
Yes, the 68% calcium hypochlorite formula is specifically designed to kill algae and eliminate contaminants quickly. Its fast-acting nature makes it an effective solution for clearing up cloudy or green water.
While the granules are quick-dissolving, it is generally recommended to broadcast the product directly into the deep end of the pool while the pump is running to ensure even distribution. Avoid adding it directly into the skimmer to prevent potential damage to your filtration system.
Store the buckets in a cool, dry, and well-ventilated area away from direct sunlight and moisture. Always keep the lid tightly sealed to prevent contamination and ensure the chlorine remains potent for future use.
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Ask Hayley anything about this product before you decide.
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$244