{"product_id":"mav-aquadoc-spa-calcium-hardness-increaser-hot-tub-calcium-booster","title":"MAV AquaDoc Spa Calcium Hardness Increaser | Hot Tub Calcium Booster","description":"\u003ch2\u003eElevate Hot Tub Water Balance with MAV AquaDoc\u003c\/h2\u003e\n\u003cp\u003eMeet the MAV AquaDoc Spa Calcium Hardness Increaser, a trusted choice for hot tub owners aiming for consistent water balance. This professional-grade formula helps you fine-tune calcium levels without guesswork, supporting smoother bather experiences and simpler maintenance. A practical addition to your spa care routine, it’s designed to be straightforward and reliable.\u003c\/p\u003e\n\u003ch3\u003eWhy hardness matters\u003c\/h3\u003e\n\u003cp\u003eCalcium hardness is a cornerstone of balanced spa water. When levels are too low, the water can become corrosive to metal components and etch spa surfaces. Proper hardness helps stabilize pH and reduces the frequency of chemical adjustments, contributing to clearer water and calmer maintenance sessions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRaises hardness in controlled increments (10 ppm per ounce) to fit your target set point\u003c\/li\u003e\n  \u003cli\u003eGuard against soft water that can corrode equipment or stain surfaces\u003c\/li\u003e\n  \u003cli\u003eSupports easier pH stability and clearer water with fewer fluctuations\u003c\/li\u003e\n  \u003cli\u003eMade in the USA with a professional-grade formula\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow AquaDoc works\u003c\/h3\u003e\n\u003cp\u003eThe calcium hardness increaser dissolves smoothly into spa water, delivering predictable increases in calcium concentration. You can raise hardness by 10 ppm per ounce until you reach your goal, then continue monitoring with your test kit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEasy to use while the pump runs for faster mixing\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard spa care routines and test kits\u003c\/li\u003e\n  \u003cli\u003eProtects hot tub surfaces from softness-related wear\u003c\/li\u003e\n  \u003cli\u003eProfessional-grade formula designed for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsage tips for best results\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTest your calcium level first to determine your target\u003c\/li\u003e\n  \u003cli\u003eAdd 1 ounce to raise by about 10 ppm, then run the filter 1–2 hours\u003c\/li\u003e\n  \u003cli\u003eWait 20 minutes and retest; adjust as needed to reach the goal\u003c\/li\u003e\n  \u003cli\u003eKeep a bottle on hand for quick re-balancing after refills or heavy use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-life scenarios\u003c\/h3\u003e\n\u003cp\u003eWhether you’re refilling after a drain, or after weekends of guests and high usage, AquaDoc helps re-establish a solid hardness baseline. The result is balanced water that supports consistent filter performance and user comfort.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AquaDoc\u003c\/h3\u003e\n\u003cp\u003eThis calcium hardness increaser is a practical choice for hot tub care, offering clear direction, steady results, and a strong defense against soft water challenges. Consider it a dependable part of your spa maintenance kit.\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 AquaDoc Spa Calcium Hardness Increaser do?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Raises calcium hardness in hot tub water, helping maintain a balanced level and protecting surfaces from softness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I use the product?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Test water, then add the recommended amount to raise hardness in 10 ppm steps, run the pump, and retest.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MAV AquaDoc","offers":[{"title":"Default Title","offer_id":45740602359994,"sku":"B08TGTHK9Q","price":53.05,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/mav-aquadoc-bottle-calcium-hardness-increaser.jpg?v=1774791162","url":"https:\/\/gardencanada.ca\/products\/mav-aquadoc-spa-calcium-hardness-increaser-hot-tub-calcium-booster","provider":"Garden Canada","version":"1.0","type":"link"}