{"product_id":"spaguard-spa-calcium-hardness-increaser-12-oz-3-pack-raise-calcium-hardness-to-200-400-ppm","title":"SpaGuard Spa Calcium Hardness Increaser (12 oz) 3-Pack – Raise Calcium Hardness to 200–400 ppm","description":"\u003cdiv class=\"seo-description\"\u003e\n  \u003ch2\u003eEffortless calcium hardness management for your spa\u003c\/h2\u003e\n  \u003cp\u003eSpaGuard's Calcium Hardness Increaser is a practical, granulated formula designed to raise water hardness with predictable results. This 3-pack provides a convenient supply for ongoing spa maintenance, helping you achieve steadier calcium levels without guesswork. The fine granules dissolve smoothly, making a routine balance feel smoother and more manageable.\u003c\/p\u003e\n  \u003cp\u003eWhy calcium hardness matters: when the calcium content falls too low, spa components and plumbing can become more vulnerable to wear and corrosion. This product targets a safe range where hardness supports metal components and interior surfaces, while avoiding excessive buildup that can cloud water or leave deposits.\u003c\/p\u003e\n  \u003ch3\u003eKey benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBoosts calcium hardness safely and steadily to help prevent corrosion of plumbing, jets, and tub surfaces.\u003c\/li\u003e\n    \u003cli\u003eMaintains an optimal range of 200–400 ppm to protect heat exchangers and equipment from excessive wear.\u003c\/li\u003e\n    \u003cli\u003eCompatible with common sanitizers including chlorine, bromine, ozone, and biguanide for flexible spa care.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch3\u003eReal-life use and how it fits into your routine\u003c\/h3\u003e\n  \u003cp\u003eImagine stepping into a spa with balanced water that feels smooth and inviting. The granules dissolve readily, contributing to a stable mineral profile, and you can retest to confirm the direction of change without worrying about sudden shifts. With the 3-pack, you have steady supplies for regular maintenance across seasons.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eUsage at your own pace: add small amounts and recheck calcium hardness with a test kit.\u003c\/li\u003e\n    \u003cli\u003ePair with routine water balancing to minimize fluctuations and maintain comfort.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eQuality you can rely on: SpaGuard offers a broad family of spa care solutions designed to work together, so you can tailor your approach to your spa setup. This 3-pack provides ongoing support for seasonal maintenance or frequent use.\u003c\/p\u003e\n  \u003ch3\u003eSimple dosing ideas\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTest first, add according to instructions, then retest after the specified wait time.\u003c\/li\u003e\n    \u003cli\u003eKeep a regular schedule to maintain a stable calcium range and protect equipment over time.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\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 SpaGuard Spa Calcium Hardness Increaser do?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It raises calcium hardness in spa water to help prevent corrosion and protect equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this product compatible with common sanitizers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is compatible with chlorine, bromine, ozone, and biguanide sanitizers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SpaGuard","offers":[{"title":"Default Title","offer_id":48197666210036,"sku":"B01M4S1IO9","price":30.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/6652\/0820\/files\/spaguard-calcium-hardness-increaser-3pack-granules.jpg?v=1778405802","url":"https:\/\/www.cerapatiogarden.com\/products\/spaguard-spa-calcium-hardness-increaser-12-oz-3-pack-raise-calcium-hardness-to-200-400-ppm","provider":"Cera Garden","version":"1.0","type":"link"}