{"product_id":"spachoice-25-pound-premium-calcium-hardness-increaser-for-pools","title":"SpaChoice 25-Pound Premium Calcium Hardness Increaser for Pools","description":"\u003ch2\u003eBalanced pool water starts with proper calcium hardness\u003c\/h2\u003e\n\u003cp\u003eSpaChoice 25-Pound Premium Calcium Hardness Increaser helps you quickly elevate total calcium hardness in your pool, supporting overall water balance and protecting surfaces. This dry, granular formula is designed to work with your existing test kit to reach the recommended ranges for different pool types. By aiming for the right hardness, you can reduce common balance issues and keep your pool looking and performing its best.\u003c\/p\u003e\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCalcium chloride-based formula designed for pool use\u003c\/li\u003e\n  \u003cli\u003eRapidly increases total hardness to help protect surfaces and equipment\u003c\/li\u003e\n  \u003cli\u003eTarget hardness ranges support different pool surfaces (vinyl, tile, plaster, fiberglass)\u003c\/li\u003e\n  \u003cli\u003eLow hardness can lead to issues, while proper hardness supports overall water quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal calcium hardness ranges by pool type\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVinyl Pools: 200–300 ppm\u003c\/li\u003e\n  \u003cli\u003eTile and Exposed Aggregate Pools: 200–400 ppm\u003c\/li\u003e\n  \u003cli\u003eMarcite, Fiberglass, or Painted Pools: 250–400 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use SpaChoice calcium hardness increaser\u003c\/h3\u003e\n\u003cp\u003eWhen testing shows hardness below the target range, follow the dilution and distribution steps to avoid shock to the system. Start with a measured approach and monitor results with your test kit and circulating pump running.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTest your pool water with a reliable test kit to determine the need for adjustment\u003c\/li\u003e\n  \u003cli\u003eDissolve up to 2 pounds of product per approximately 5-gallon bucket of pool water\u003c\/li\u003e\n  \u003cli\u003eSlowly pour the dissolved solution around the pool perimeter while the circulation system is operating\u003c\/li\u003e\n  \u003cli\u003eFor larger pools, such as 10,000 gallons, limit additions to no more than 10 pounds per 2 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat to expect and practical tips\u003c\/h3\u003e\n\u003cp\u003eEach 8 ounces of the product can raise calcium hardness by about 10 ppm in a 5,000-gallon scenario. Results can vary with your water chemistry and usage patterns, so gradual adjustments and re-testing are advised. This product is intended to help reach the desired hardness range and reduce typical balance-related concerns, without making guarantees about results.\u003c\/p\u003e\n\u003cp\u003eStore and handle according to label directions, and keep away from moisture to preserve effectiveness. Regular testing remains the best way to confirm when adjustments are needed and to maintain a comfortable, balanced pool environment.\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: What does SpaChoice 25-Pounds Premium Increase Calcium do for my pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It raises calcium hardness toward the recommended range, helping protect surfaces and equipment from balance-related issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I apply SpaChoice calcium hardness increaser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Dissolve up to 2 lb per 5 gallons in a bucket, pour slowly around the pool while the circulation runs; limit to 10 lb per 2 hours for 10,000 gal pools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SpaChoice","offers":[{"title":"Default Title","offer_id":43982869823622,"sku":"B0C112GPTJ","price":66.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/spachoice-calcium-hardness-increaser-25lb-bag.jpg?v=1778771364","url":"https:\/\/patiozora.com\/products\/spachoice-25-pound-premium-calcium-hardness-increaser-for-pools","provider":"PatioZora","version":"1.0","type":"link"}