POOLIFE Rapid Shock Calcium Hypochlorite Pool Shock, 1 lb Bags (24-Pack) — Fast-Dissolving, CYA-Free for Algae & Bacteria Removal

When your pool needs a quick sanitation boost after heavy use, storms, or visible algae, POOLIFE Rapid Shock delivers concentrated available chlorine in an easy-to-use granule form. This CYA-free formula minimizes stabilizer buildup and helps restore clear, swim-ready water when used as directed. Each 1 lb pre-measured bag is formulated for routine weekly shocking or targeted treatments to resolve cloudy water and eliminate contaminants.

How quickly will this shock dissolve and work in my pool?

POOLIFE Rapid Shock is formulated to dissolve rapidly and disperse across the pool when added while the pump is running. Allow about 30 minutes for dispersion and always test free chlorine with a pool kit before allowing swimmers back in.

• Fast-dissolving calcium hypochlorite granules for quick action
• Add during evening hours with pump running for best circulation
• Wait ~30 minutes, then test free chlorine before swimming

What dosage should I use for routine weekly shocking?

For ongoing maintenance to prevent algae and most common problems, follow the package directions tailored to your pool size. Typical dosing for maintenance is 9–16 ounces per 10,000 gallons to achieve roughly 5–10 ppm available chlorine every seven days.

• 9–16 oz per 10,000 gallons for a 5–10 ppm chlorine boost
• Use weekly or as needed after heavy use, storms, or visible issues
• Retest with a pool kit and repeat treatment if contaminants remain

Is this safe for all pool types and surfaces?

Yes — the product is compatible with common pool surfaces including vinyl, plaster, and fiberglass when used according to label instructions. Because it does not add cyanuric acid (CYA), it won’t contribute to stabilizer buildup that can reduce sanitizer effectiveness over time.

• Suitable for above-ground and in-ground pools
• Works on vinyl liners, plaster, and fiberglass surfaces
• CYA-free formula helps maintain chlorine efficacy long-term

What steps should I follow when applying a shock treatment?

Applying the shock correctly helps protect finishes and ensures even distribution. Broadcast the granules across the deepest part of the pool with the filter running, brush any settled material into suspension, and always maintain pH between 7.2 and 7.6 for best results.

• Broadcast evenly over the deep end while pump runs
• Brush settled granules and allow circulation before testing
• Keep pH between 7.2 and 7.6 for optimal performance

Who is this for? POOLIFE Rapid Shock is intended for pool owners and service professionals who want a powerful, easy-to-use chlorine shock that acts quickly and avoids adding stabilizer. It’s a practical choice for weekly pool maintenance, emergency algae or odor control, and routine sanitization of both above-ground and in-ground pools. Always follow label directions and safety guidance when handling and applying pool chemicals.