Pool Brand Blackout Granular 90 Trichlor Pool Shock
Best high-strength shock for white plaster pool owners battling stubborn algae.
This high-potency granular shock is the heavy-duty solution for stubborn black algae that standard treatments often miss. While it requires more careful handling than milder alternatives, its 90% chlorine concentration offers a level of sanitizing power that turns neglected, cloudy water into a pristine swimming environment with minimal effort.
$249.99
Who it's for
- Pool owners needing heavy-duty sanitization and rapid algae control
- Outdoor pool owners seeking long-lasting chlorine effectiveness under direct sun
- Budget-conscious homeowners maintaining large pools throughout the entire season
Who should skip it
- Pool owners wanting to avoid frequent water chemistry testing and balancing
- Users concerned about long-term stabilizer accumulation and chlorine lock
- Safety-conscious individuals wary of handling highly corrosive pool chemicals
Performance breakdown
Sanitization Potency
High-concentration chlorine formula delivers aggressive, professional-grade water purification.
Algae Eradication
Specifically engineered to dismantle stubborn black algae on plaster surfaces.
Application Convenience
Granular form allows for quick, mess-free distribution across the pool.
Storage Efficiency
Sturdy 50-pound bucket keeps chemicals dry and secure between treatments.
Surface Compatibility
Optimized for white plaster but requires caution on sensitive pool finishes.
Chemical Stability
Trichlor composition provides consistent, long-lasting sanitization for clear water.
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
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