{"product_id":"drytec-calcium-hypochlorite-pool-shock-12-pack-1-lb-bags-68-active-chlorine-for-fast-clarifying","title":"DryTec Calcium Hypochlorite Pool Shock — 12-Pack 1‑lb Bags, 68% Active Chlorine for Fast Clarifying","description":"\u003cp\u003e\u003cstrong\u003eDryTec 1-1901-12 Calcium Hypochlorite Pool Shock is a concentrated granular pool shock sold as twelve 1‑pound bags, each designed to quickly raise free chlorine and refresh swimming pool water.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your pool water clear and properly oxidized with a high‑strength calcium hypochlorite formula (68% active). These single‑use bags are intended to be broadcast across the pool and dispersed with the filter pump running; they deliver a predictable 5–10 ppm available chlorine per bag per 10,000 gallons when used as directed. Follow water balance and safety guidance for best performance.\u003c\/p\u003e\n\n\u003ch3\u003eHow should I apply DryTec pool shock safely and effectively?\u003c\/h3\u003e\n\u003cp\u003eAdd the product in the evening while the filter pump runs, broadcasting evenly across the deepest area of the pool. Allow at least 30 minutes for initial dispersion, then test chlorine residual with a reliable kit before permitting swimmers to re-enter.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse one 1‑pound bag per 10,000 gallons for a 5–10 ppm chlorine boost.\u003c\/li\u003e\n  \u003cli\u003eBroadcast evenly over a wide area in the deepest part of the pool.\u003c\/li\u003e\n  \u003cli\u003eIf granules settle, brush the pool floor to disperse them.\u003c\/li\u003e\n  \u003cli\u003eWait until free chlorine reads 1–4 ppm before swimming.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen and how often should I shock or superchlorinate my pool?\u003c\/h3\u003e\n\u003cp\u003eRoutine shock is recommended weekly or as needed to prevent issues like algae or cloudy water. Additional treatments may be required after heavy bather loads, storms, or visible contaminants; always verify with a test kit before and after treatment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRoutine schedule: shock every 7 days or as necessary.\u003c\/li\u003e\n  \u003cli\u003eExtra shocks after wind, rain, or heavy use.\u003c\/li\u003e\n  \u003cli\u003eRepeat treatments until pool tests in the desired chlorine range.\u003c\/li\u003e\n  \u003cli\u003eAlways retest free available chlorine following treatment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat water chemistry should I maintain for optimal results?\u003c\/h3\u003e\n\u003cp\u003eBalanced water ensures swimmer comfort and helps the shock perform as intended. Use a test kit that measures pH, total alkalinity, and calcium hardness, and adjust with appropriate pool care products before shocking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintain pH between 7.2 and 7.6.\u003c\/li\u003e\n  \u003cli\u003eKeep total alkalinity between 60 and 120 ppm.\u003c\/li\u003e\n  \u003cli\u003eMaintain calcium hardness above 200 ppm.\u003c\/li\u003e\n  \u003cli\u003eTest and adjust levels prior to applying shock for best clarity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat results can I expect after using DryTec calcium hypochlorite?\u003c\/h3\u003e\n\u003cp\u003eThis shock provides a rapid increase in available chlorine to oxidize contaminants and control algae when used correctly. Clearance time and the number of doses needed will vary with pool size, contamination level, and existing water chemistry.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides 5–10 ppm available chlorine per bag per 10,000 gallons.\u003c\/li\u003e\n  \u003cli\u003eEffective for routine maintenance and problem correction.\u003c\/li\u003e\n  \u003cli\u003eWorks best when water balance is within recommended ranges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Pool owners and maintenance professionals who need a reliable, high‑strength granular shock in single‑use 1‑pound bags for predictable superchlorination. Ideal for above‑ground and in‑ground pools where straightforward dosing, easy storage, and periodic shock treatment are part of regular care. Follow label directions and local regulations when handling and disposing of pool chemicals.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I add DryTec shock while people are swimming?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Add in the evening with the pump running and wait until free chlorine is 1–4 ppm before re-entry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many bags do I need for a 20,000-gallon pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use two 1-pound bags to provide approximately 5–10 ppm available chlorine for 20,000 gallons.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DryTec","offers":[{"title":"Default Title","offer_id":56834874343764,"sku":"B00U2NORTU","price":120.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/drytec-front-packaging.jpg?v=1787054272","url":"https:\/\/gardenluxe.co.uk\/products\/drytec-calcium-hypochlorite-pool-shock-12-pack-1-lb-bags-68-active-chlorine-for-fast-clarifying","provider":"Gardenluxe Uk","version":"1.0","type":"link"}