{"product_id":"hth-calcium-hardness-up-4-lbs-pool-calcium-hardness-increaser","title":"HTH Calcium Hardness Up - 4 Lbs | Pool Calcium Hardness Increaser","description":"\u003cp\u003eIntroducing the HTH Calcium Hardness Up formula—a trusted pool care solution designed to raise calcium hardness and help safeguard your pool surfaces and equipment. This 4 lb container works with all pool types, making it a versatile addition to any maintenance routine.\u003c\/p\u003e\n\u003cp\u003eCalcium hardness is a key factor in water balance. When hardness is too low, water can become corrosive, potentially affecting liners, metal fittings, and plastic components. By raising calcium hardness, you create a mineral buffer that supports durable surfaces and steadier operation of pumps and filters, while helping maintain water that appears clear and balanced under typical daylight and poolside lighting.\u003c\/p\u003e\n\u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRaises the calcium hardness of your pool water to protect surfaces and equipment from wear and damage.\u003c\/li\u003e\n\u003cli\u003eCompatible with all pool types, so you can use it with confidence regardless of your setup.\u003c\/li\u003e\n\u003cli\u003eHelps prevent water from becoming corrosive by supporting a stable balance of minerals.\u003c\/li\u003e\n\u003cli\u003eProtects liners, metal, and plastic components as well as pool equipment from potential harm.\u003c\/li\u003e\n\u003cli\u003ePair with weekly testing for best results, keeping calcium hardness levels within a safe range (200–500 ppm) using the HTH 6-Way Test Strips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eHow to use is straightforward. Start by testing the water weekly using the HTH 6-Way Test Strips. If hardness is low, add Calcium Hardness Up gradually while the system is running and the filter is operating. Re-test after dosing and adjust as needed to approach the 200–500 ppm range. Regular testing helps you stay on top of balance without guesswork.\u003c\/p\u003e\n\u003ch2\u003eWhat you get in this 4 lb container\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCalcium hardness increaser formulated to raise water hardness safely.\u003c\/li\u003e\n\u003cli\u003eClear dosing guidance aligned with common pool maintenance routines.\u003c\/li\u003e\n\u003cli\u003eA ready-to-use solution designed for ongoing balance alongside routine testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor best results, keep your testing routine consistent and use HTH 6-Way Test Strips weekly to monitor calcium hardness along with other critical parameters. Balanced water can contribute to a smoother feel, brighter clarity, and more predictable performance from your pool’s surfaces and equipment. This product is a practical addition to a comprehensive pool care plan—offering a tangible step toward maintaining your pool’s health and enjoyment without overpromising results.\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 is HTH Calcium Hardness Up used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It raises calcium hardness to protect pool surfaces and equipment and supports proper water balance when used with regular testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I test and maintain calcium hardness?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Test weekly with HTH 6-Way Test Strips and keep calcium hardness between 200 and 500 ppm.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HTH","offers":[{"title":"Default Title","offer_id":45740566544570,"sku":"B09R83SCL9","price":48.83,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/hth-calcium-hardness-up-bottle-pour.jpg?v=1774790398","url":"https:\/\/gardencanada.ca\/products\/hth-calcium-hardness-up-4-lbs-pool-calcium-hardness-increaser","provider":"Garden Canada","version":"1.0","type":"link"}