{"product_id":"spaguard-spa-calcium-hardness-increaser-12-oz-3-pack-raise-calcium-hardness","title":"SpaGuard Spa Calcium Hardness Increaser (12 oz) - 3 Pack | Raise Calcium Hardness","description":"\u003ch2\u003eElevate Your Spa Water Chemistry\u003c\/h2\u003e\n\u003cp\u003eSpaGuard's Calcium Hardness Increaser is a granular formula designed to raise calcium hardness in your hot tub water. By bringing calcium levels up toward a safer range, it helps guard against the wear and corrosion that frequent use can cause on plumbing, jets, fixtures, and tub surfaces. This product targets the balance where too little calcium makes metals vulnerable, yet too much calcium can lead to scale and cloudy water. The result is water that feels steadier, with less aggressive fluctuations from season to season.\u003c\/p\u003e\n\u003cp\u003eIn practice, maintaining calcium hardness in the 200–400 ppm range supports a stable environment that helps protect heating elements and other equipment. This balance can contribute to smoother operation, more consistent heat output, and clearer water without sudden changes in chemistry.\u003c\/p\u003e\n\u003ch3\u003eKey benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoosts Calcium Hardness:\u003c\/strong\u003e A straightforward granular formula that raises the calcium level, moving water away from the danger zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteady, Optimal Range:\u003c\/strong\u003e Helps you reach and maintain roughly 200–400 ppm, supporting balanced spa water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Spa \u0026amp; Equipment:\u003c\/strong\u003e Reducing corrosive tendencies can help preserve plumbing, jets, and surfaces over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Sanitation Compatibility:\u003c\/strong\u003e Works alongside chlorine, bromine, ozone, and biguanide sanitizers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliably Formulated by SpaGuard:\u003c\/strong\u003e A tested solution within a trusted line of spa care products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to use (quick guide)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTest your calcium hardness to determine current levels.\u003c\/li\u003e\n\u003cli\u003eFollow label directions to add the granules gradually into the spa water.\u003c\/li\u003e\n\u003cli\u003eRe-test after treatment and adjust toward the 200–400 ppm range as needed.\u003c\/li\u003e\n\u003cli\u003eContinue routine sanitizing and filtration for clear, comfortable water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cp\u003eWhether you’re preparing a spa for a new season or refreshing after heavy use, maintaining calcium hardness helps stabilize water chemistry and protect surfaces from wear. The granular format makes dosing straightforward, especially for regular spa owners who value consistency and ease of use.\u003c\/p\u003e\n\u003cp\u003eNote: This product supports safer water balance as part of a comprehensive spa care routine. Results may vary with local water conditions and sanitizer choices.\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 SpaGuard Spa Calcium Hardness Increaser do?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It raises calcium hardness to help stabilize spa water and reduce corrosion risk to plumbing and equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which sanitizers is it compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: 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":45747251642554,"sku":"B01M4S1IO9","price":77.37,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/spaguard-calcium-hardness-increaser-bottle.jpg?v=1775002030","url":"https:\/\/gardencanada.ca\/products\/spaguard-spa-calcium-hardness-increaser-12-oz-3-pack-raise-calcium-hardness","provider":"Garden Canada","version":"1.0","type":"link"}