(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification

HTH Pool Care Green to Blue, Advanced Shock System, 2 Step Solution Green to Blue, 1 Kit <p> The HTH® Super Green to Blue Advanced Shock is a 2-part system. Pack I shocks your pool with a boost of chlorine, helping you fend off bacteria. Pack II is a powerful flocculant that drops particles to the bottom of the pool for easy vacuuming. Both packs work together to create beautiful, crystal clear pool water within 24 hours. </p><p> How To Use HTH® Green To Blue Advanced Shock System: Simply follow the on-pack instructions for both Pack I and Pack II. Pack I is the Cal Hypo Shock treatment and Pack II is a flocculant that drops dead particles to the bottom of the pool for easy vacuuming.</p>

• Fight severe algae bloom and transform your swimming pool water from green to blue in 24 hours with this easy-to-use system.
• Simple 2-step system contains: - 4 bags of Pack I - a strong algae-fighting pool shock utilizing Cal Hypo - 2 bags of Pack II - a powerful flocculant that binds algae particles together and drops them to the pool floor for vacuuming to waste
• Pack II, flocculant contents appears brownish-orangish, which is normal
• Not for use with cartridge filters
• Easy to use
• To use effectively, your pool must have a multi-port valve with a “waste” position 
• About HTH® Pool Care HTH® was developed with the pool owner in mind. We know that maintaining your pool water can be a lot of work. That’s why we're here every step of the way, helping you clear the uncertainty from pool care. With economical, easy-to-use solutions, HTH® is designed to work hard so you're prepared to tackle whatever life throws in your pool. From balancing your water to treating green water, we offer a full line of products to keep your pool water healthy and your swimmers happy. 
• Visibly brilliant sparkle This Cal Hypo based formula transforms water from green to blue within 24 hours without adding cyanuric acid (CYA) to prevent over-stabilization or chlorine lock. 
• Compatible with all swimming pools  This product is effective for all pool types that can vacuum to waste. It’s ideal for vinyl-lined pools and won't fade liners. 
• You're all clear with HTH®  For best results, use with HTH® 6-Way Test Strips to test and balance your swimming pool water twice weekly.