HTH Pool Care Chlorine Shock — Granules, 6 Pack (13.3 oz each) — Pool Shock Treatment for Weekly Use

HTH Pool Care Shock, Boosts Chlorine Levels, Cal Hypo Formula, 13.3 oz (Pack of 6) <p> HTH® Shock is the original swimming pool shock designed to boost chlorine levels and kill bacteria and algae for a clean, clear pool. Traditional chlorine products contain cyanuric acid (CYA). When too much CYA builds up, it can cause over-stabilization or chlorine lock and cloud your water. The fast-acting, fast-dissolving Cal Hypo based formula in HTH® Shock provides chlorination without adding extra CYA for a beautiful sparkle all season. This pool chemical shock is great for all pool types and won't fade your pool liner. </p><p>How To Use HTH® Shock Follow the on-pack instructions according to your pool size to add HTH® Shock directly to swimming pool water or skimmer. For best results, apply HTH® Shock as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.</p>

• Shock treat, sanitize, clarify and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product.
• Multi-use pool shock with Cal Hypo - Use weekly to solve 90% of pool water problems within 24 hours - Fast-acting and fast-dissolving.
• Visibly brilliant sparkle This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent over-stabilization or chlorine lock.
• Compatible with all swimming pools This product is great for all pool types including vinyl-lined pools and saltwater systems.
• 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.