{"product_id":"hth-pool-shock-advanced-calcium-hypochlorite-24-pack-fast-dissolving-clears-cloudy-water","title":"HTH Pool Shock Advanced calcium hypochlorite 24-Pack — fast-dissolving, clears cloudy water","description":"\u003cp\u003e\u003cstrong\u003eHTH Shock Advanced is a fast-dissolving, cal-hypo pool shock in a 24-count pack that kills bacteria, prevents algae, reduces chlorine odor, and clears cloudy water without adding cyanuric acid.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you manage a residential pool and want reliable weekly maintenance, HTH Shock Advanced offers a single-step shock treatment designed to restore water clarity and strengthen sanitizer performance. Its calcium hypochlorite (cal hypo) formula works quickly to address cloudy or unbalanced water, helping you keep a swim-ready pool with predictable results. The product is sold as a convenient 24-pack for regular dosing and seasonal upkeep.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I see clearer pool water after using this shock?\u003c\/h3\u003e\n\u003cp\u003eMost users notice improved clarity within 24 hours when applied according to label directions. The cal hypo chemistry dissolves fast and disperses active chlorine to treat contaminants efficiently.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical visible improvement within one day\u003c\/li\u003e\n  \u003cli\u003eFast-dissolving granules for even distribution\u003c\/li\u003e\n  \u003cli\u003eFollow pool size and dosage instructions for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this product affect my pool’s stabilizer level or chlorine efficiency?\u003c\/h3\u003e\n\u003cp\u003eHTH Shock Advanced uses calcium hypochlorite and does not add cyanuric acid, so it won't increase stabilizer (CYA) levels. That means you can reduce the risk of chlorine lock and preserve sanitizer effectiveness over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo added cyanuric acid—helps avoid overstabilization\u003c\/li\u003e\n  \u003cli\u003eMaintains active free chlorine without extra stabilizer buildup\u003c\/li\u003e\n  \u003cli\u003eGood option for pools already managing CYA levels carefully\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use this 24-pack for weekly pool maintenance?\u003c\/h3\u003e\n\u003cp\u003eFor routine care, shock the pool once a week or any time the water looks cloudy or after heavy swimmer use. Dissolve or broadcast the product according to label instructions, and ensure filtration runs to help clear treated particles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShock weekly for ongoing pool clarity\u003c\/li\u003e\n  \u003cli\u003eMeasure dose based on pool volume and follow safety directions\u003c\/li\u003e\n  \u003cli\u003eRun filter after treatment to remove debris and restored clarity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs HTH Shock Advanced safe to use with other pool chemicals?\u003c\/h3\u003e\n\u003cp\u003eYes, when used as directed and with proper timing: do not mix directly with other chemicals, and wait until chlorine stabilizes before swimming. Store separately and follow manufacturer safety guidance for combined treatments or algaecide use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAvoid mixing chemicals—add to water per instructions\u003c\/li\u003e\n  \u003cli\u003eWait to resume swimming until chlorine returns to safe levels\u003c\/li\u003e\n  \u003cli\u003eStore in a cool, dry place away from incompatible substances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: HTH Shock Advanced 24-Pack is suited for homeowners and pool caretakers seeking an effective, easy-to-use weekly shock that clears cloudy water and protects sanitizer performance without raising cyanuric acid. It’s ideal for in-ground and above-ground pools where predictable clarity, rapid action, and routine maintenance convenience matter. If you prefer a cal hypo shock that dissolves quickly and comes in a multi-pack for regular dosing, this product provides a practical choice for season-long pool upkeep.\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: How often should I use HTH Shock Advanced?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Shock weekly for routine maintenance, or after heavy use or cloudy water, following label dosage for your pool volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this shock add cyanuric acid to my pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—HTH Shock Advanced uses cal hypo and does not add cyanuric acid, helping avoid overstabilization.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HTH","offers":[{"title":"Default Title","offer_id":56844620005716,"sku":"B0H534L18X","price":205.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/hth-shock-advanced-front-packaging.jpg?v=1787086757","url":"https:\/\/gardenluxe.co.uk\/products\/hth-pool-shock-advanced-calcium-hypochlorite-24-pack-fast-dissolving-clears-cloudy-water","provider":"Gardenluxe Uk","version":"1.0","type":"link"}