{"product_id":"spapure-2-lb-alkalinity-increaser","title":"SpaPure Alkalinity Increaser 2 lb Granular Spa and Hot Tub Total Alkalinity Booster","description":"\n\u003cstyle\u003e\n  .spaalk-wrap, .spaalk-wrap * { box-sizing: border-box; }\n  .spaalk-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.6;\n  }\n\n  \/* Title bar (flat, no gradient) *\/\n  .spaalk-title {\n    border-bottom: 3px solid #0066cc;\n    padding-bottom: 12px;\n    margin-bottom: 20px;\n  }\n  .spaalk-title h2 {\n    margin: 0;\n    font-size: 1.6em;\n    color: #0066cc;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .spaalk-subtitle {\n    margin: 4px 0 0;\n    color: #555;\n    font-size: 0.95em;\n    font-style: italic;\n  }\n\n  \/* Intro *\/\n  .spaalk-intro {\n    margin: 0 0 24px;\n    font-size: 1em;\n    color: #333;\n  }\n\n  \/* Spec table *\/\n  .spaalk-spec-section { margin-bottom: 24px; }\n  .spaalk-spec-heading {\n    font-size: 0.85em;\n    text-transform: uppercase;\n    letter-spacing: 0.06em;\n    color: #0066cc;\n    font-weight: 700;\n    margin: 0 0 8px;\n  }\n  .spaalk-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95em;\n  }\n  .spaalk-spec-table tr { border-bottom: 1px solid #e8ecf3; }\n  .spaalk-spec-table tr:last-child { border-bottom: none; }\n  .spaalk-spec-table th,\n  .spaalk-spec-table td {\n    text-align: left;\n    padding: 8px 12px;\n    vertical-align: top;\n  }\n  .spaalk-spec-table th {\n    font-weight: 600;\n    color: #0066cc;\n    width: 42%;\n    background: #f7f8fc;\n  }\n  .spaalk-spec-table td { color: #1a1a1a; }\n\n  \/* FAQ (optional) *\/\n  .spaalk-faq { margin-bottom: 24px; }\n  .spaalk-faq-item {\n    border-bottom: 1px solid #e8ecf3;\n    padding: 12px 0;\n  }\n  .spaalk-faq-item:last-child { border-bottom: none; }\n  .spaalk-faq-q {\n    font-weight: 600;\n    color: #0066cc;\n    margin: 0 0 4px;\n    font-size: 0.98em;\n  }\n  .spaalk-faq-a { margin: 0; color: #333; font-size: 0.95em; }\n\n  \/* Footer perks line *\/\n  .spaalk-footer {\n    border-top: 1px solid #e1e6ed;\n    padding-top: 14px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.9em;\n  }\n  .spaalk-footer .spaalk-dot {\n    color: #0066cc;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"spaalk-wrap\"\u003e\n\n  \u003cheader class=\"spaalk-title\"\u003e\n    \u003ch2\u003eSpaPure Alkalinity Increaser 2 lb Granular Spa and Hot Tub Total Alkalinity Booster\u003c\/h2\u003e\n    \u003cp class=\"spaalk-subtitle\"\u003eFast dissolving bicarbonate for steady pH.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"spaalk-intro\"\u003e\u003cstrong\u003eSpaPure Alkalinity Increaser\u003c\/strong\u003e (SKU \u003cstrong\u003ePST-SPA2693CS20B2\u003c\/strong\u003e, MPN \u003cstrong\u003eC002693-CS20B2\u003c\/strong\u003e) is a 2 lb bottle of granular sodium bicarbonate that raises total alkalinity and keeps your pH parked where it belongs. Alkalinity is the buffer that holds pH in the ideal range, so even when today's pH reading looks fine, alkalinity that has drifted low or high will bounce that reading around, work on metal parts and heater components, and make the water less comfortable to sit in. The ultra fast dissolving granules broadcast straight over circulating water, play well with every sanitizer and oxidizing system, and the spa is ready to use immediately after application. Alkalinity moves slowly compared to pH, so you only need to test it about half as often, and a 2 lb bottle covers a long stretch of routine correction.\u003c\/p\u003e\n\n  \u003csection class=\"spaalk-spec-section\"\u003e\n    \u003cdiv class=\"spaalk-spec-heading\"\u003eSpecifications\u003c\/div\u003e\n    \u003ctable class=\"spaalk-spec-table\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eHaviland Consumer Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSpaPure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003ctd\u003eAlkalinity Increaser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ MPN\u003c\/th\u003e\n\u003ctd\u003eC002693-CS20B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003ePST-SPA2693CS20B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContainer Size\u003c\/th\u003e\n\u003ctd\u003e2 lb bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eChemical Type\u003c\/th\u003e\n\u003ctd\u003eTotal alkalinity increaser (spa water balancer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eActive Ingredient\u003c\/th\u003e\n\u003ctd\u003eSodium hydrogen carbonate (sodium bicarbonate), 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCAS Number\u003c\/th\u003e\n\u003ctd\u003e144-55-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003eWhite granular powder, odorless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSolubility\u003c\/th\u003e\n\u003ctd\u003eUltra fast dissolving\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003epH (1% Solution)\u003c\/th\u003e\n\u003ctd\u003e8.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater Type\u003c\/th\u003e\n\u003ctd\u003eSpas and hot tubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget Total Alkalinity\u003c\/th\u003e\n\u003ctd\u003e125 to 150 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDose Rate\u003c\/th\u003e\n\u003ctd\u003e1\/2 oz (1 Tbsp) per 200 gallons raises total alkalinity 10 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eBroadcast over the water surface while the spa is circulating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReady To Use\u003c\/th\u003e\n\u003ctd\u003eSpa may be used immediately after application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSanitizer Compatibility\u003c\/th\u003e\n\u003ctd\u003eCompatible with all sanitizers and oxidizing systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Weight\u003c\/th\u003e\n\u003ctd\u003e2.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShipping Dimensions\u003c\/th\u003e\n\u003ctd\u003e5.0 x 5.0 x 6.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \n  \u003csection class=\"spaalk-faq\"\u003e\n    \u003cdiv class=\"spaalk-spec-heading\"\u003eGood to Know\u003c\/div\u003e\n    \n    \u003cdiv class=\"spaalk-faq-item\"\u003e\n      \u003cp class=\"spaalk-faq-q\"\u003eHow much Alkalinity Increaser do I add?\u003c\/p\u003e\n      \u003cp class=\"spaalk-faq-a\"\u003eAdd \u003cstrong\u003e1\/2 oz (1 tablespoon) per 200 gallons\u003c\/strong\u003e of spa water to raise total alkalinity by \u003cstrong\u003e10 ppm\u003c\/strong\u003e. Turn the circulation on, broadcast the granules over the surface, and let the water turn over before you retest. Work up to a target of \u003cstrong\u003e125 to 150 ppm\u003c\/strong\u003e in stages rather than dumping a full correction at once, and the spa is ready to use immediately after the product goes in.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"spaalk-faq-item\"\u003e\n      \u003cp class=\"spaalk-faq-q\"\u003eShould I correct alkalinity or pH first?\u003c\/p\u003e\n      \u003cp class=\"spaalk-faq-a\"\u003eAlkalinity first, every time. Total alkalinity is the buffer that holds pH steady, so chasing a pH reading over an out of range alkalinity just puts you back where you started next week. Get total alkalinity into range with this product, let the water circulate, then fine tune pH from there with \u003ca href=\"https:\/\/pstpoolsupplies.com\/products\/spapure-24-oz-dry-ph-down-spa-pure\"\u003eSpaPure pH Down\u003c\/a\u003e if the reading lands high. Both products are compatible with all sanitizers and oxidizing systems, so they drop into whatever program you already run.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003cdiv class=\"spaalk-faq-item\"\u003e\n      \u003cp class=\"spaalk-faq-q\"\u003eWhat is the difference between the 2 lb and 1 lb bottles?\u003c\/p\u003e\n      \u003cp class=\"spaalk-faq-a\"\u003eQuantity only. Both carry the identical \u003cstrong\u003eC002693\u003c\/strong\u003e alkalinity increaser formula. This listing is the \u003cstrong\u003e2 lb\u003c\/strong\u003e bottle (C002693-CS20B2); the smaller size is C002693-CS20B6. The 2 lb size is the one to keep on the shelf if you soak year round or refill often. Store either one closed, cool, and dry, keep it out of reach of children and pets, and never mix it with other chemicals in a bucket or scoop.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"spaalk-footer\"\u003e\n    Free Shipping\u003cspan class=\"spaalk-dot\"\u003e•\u003c\/span\u003e30-Day Returns\u003cspan class=\"spaalk-dot\"\u003e•\u003c\/span\u003eFactory-Sealed Bottle\u003cspan class=\"spaalk-dot\"\u003e•\u003c\/span\u003eAuthorized SpaPure Dealer\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Haviland Consumer Products","offers":[{"title":"Default Title","offer_id":44463157379137,"sku":"PST-SPA2693CS20B2","price":19.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/SPA2693CS20B2.jpg?v=1787450616","url":"https:\/\/www.pstpoolsupplies.com\/products\/spapure-2-lb-alkalinity-increaser","provider":"PST Pool Supplies","version":"1.0","type":"link"}