Pool Brand Blackout Granular 90 Trichlor Pool Shock, 50 lbs.
Maintain a pristine pool with Pool Brand Blackout Granular 90 Trichlor Pool Shock. This powerful 50 lb. bucket delivers a potent 90% available chlorine, effectively sanitizing your water and eliminating stubborn algae, especially black algae on white plaster pools. Its high-strength granular formula offers a reliable alternative to Cal Hypo shock, ensuring your pool remains clear and inviting. Designed for efficient pool maintenance, this shock treatment is a go-to solution for a sparkling clean swimming experience.
$359.99
Owner Satisfaction
4.5
/ 5
Category Rank
456
/ 1319
#456 in Pool Cleaners & Chemicals
Price vs Category Average
+429%
Above average
Product Type
Pool Chemical
/ Pool Chemical
Who it's for
- High Available Chlorine Content
- UV Stabilized Formula
- Economical Bulk Quantity
Who should skip it
- Significant pH Lowering Effect
- Risk of Cyanuric Acid Buildup
- Corrosive and Handling Hazards
Key Specs
Product Type
Pool Chemical
Chemical Type
Shock
Chemical Form
Granular
Active Ingredient
Trichloro-S-Triazinetrione
Concentration
90% Available Chlorine
Container Size
Bucket: 50 lb
Weight
50 lbs.
Pool Surface Compatibility
white plaster pools
Features
- High-strength granular trichlor shock
- Delivers 90% available chlorine
- Effective black algae treatment
- Ideal for white plaster pools
- Alternative to Cal Hypo shock
- Convenient 50 lb. bucket
What customers say
Customers overwhelmingly praise this granular shock for its powerful effectiveness and excellent bulk value. Its high concentration delivers rapid results, quickly clearing tough algae and restoring water clarity, often succeeding where other products fail. Users consider it a reliable workhorse chemical essential for maintaining large pools, especially during peak season. The primary friction points involve price volatility and the need for careful handling. Due to its strength, inexperienced users must pre-dissolve the granules to prevent surface residue or potential bleaching. Despite these minor application caveats, the consensus strongly favors this product for those prioritizing potent chemical action and superior long-term supply value.
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