{"product_id":"spachoice-alkalinity-increaser-for-hot-tub-2-lb-4-pack-fast-dissolving-granules-stabilizes-ph","title":"SpaChoice Alkalinity Increaser for Hot Tub — 2 lb (4-Pack) Fast-Dissolving Granules, Stabilizes pH","description":"\u003cp\u003e\u003cstrong\u003eSpaChoice Premium Alkalinity Increaser is a fast-dissolving granular formula designed to raise and stabilize total alkalinity in hot tub water.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeeping total alkalinity in the recommended 80–140 ppm range is one of the simplest ways to protect hot tub equipment, reduce pH fluctuations, and make sanitizers work more consistently. This SpaChoice product is formulated specifically to correct low alkalinity without adding heavy particulates or long settling time. It dissolves quickly and is easy to dose, so you can return your spa to balanced water in under an hour when used with routine testing.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use this alkalinity increaser safely and accurately?\u003c\/h3\u003e\n\n\u003cp\u003eMeasure and add small increments, circulate, then retest—repeat until the target range is achieved. For best results dissolve the granules in a small plastic pail of warm water first to avoid direct contact with the shell or plumbing. Allow the pump and jets to run between tests so the product disperses evenly through the system.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdd 1 ounce (about 2 tablespoons) to the spa water as a starting dose.\u003c\/li\u003e\n  \u003cli\u003eCirculate water for 30 minutes before retesting total alkalinity.\u003c\/li\u003e\n  \u003cli\u003eRepeat dosing and retesting until total alkalinity reads 80–140 ppm.\u003c\/li\u003e\n  \u003cli\u003eAlways test with a reliable alkalinity test kit before and after adjustments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat problems does raising total alkalinity prevent?\u003c\/h3\u003e\n\n\u003cp\u003eMaintaining proper total alkalinity stabilizes pH and reduces rapid swings that cause \"pH bounce.\" When alkalinity is in the correct range you’ll see fewer surface etches, less scale formation, and lower risk of metal corrosion. Balanced alkalinity also helps sanitizers maintain their effectiveness so water stays clearer and safer.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMinimizes pH drift and unpredictable fluctuations.\u003c\/li\u003e\n  \u003cli\u003eReduces scale deposits on heaters and surfaces.\u003c\/li\u003e\n  \u003cli\u003eHelps prevent corrosion of metal components and fittings.\u003c\/li\u003e\n  \u003cli\u003eSupports consistent sanitizer performance for clearer water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow quickly will I see results after adding the product?\u003c\/h3\u003e\n\n\u003cp\u003eThis granular formula dissolves quickly and will begin affecting total alkalinity within the first circulation cycle. Expect to retest after 30 minutes; many owners reach their target in one or two adjustments. If needed, repeat short dosing cycles until the test reads between 80 and 140 ppm.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGranules dissolve rapidly when pre-dissolved in a small bucket.\u003c\/li\u003e\n  \u003cli\u003eInitial circulation time: 30 minutes before retesting.\u003c\/li\u003e\n  \u003cli\u003eTypical adjustments require one or two short repeat doses.\u003c\/li\u003e\n  \u003cli\u003eDo not over-dose—make small incremental additions and retest.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this with any hot tub sanitizer or surface material?\u003c\/h3\u003e\n\n\u003cp\u003eSpaChoice alkalinity increaser is compatible with common hot tub sanitizers and surface types when used according to directions. It’s intended to complement regular sanitizer routines and routine water testing. Always consult your spa manufacturer’s care guidelines if you have specialty finishes or proprietary equipment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with chlorine and bromine sanitizer programs when balanced.\u003c\/li\u003e\n  \u003cli\u003eSafe for acrylic and common spa surfaces when diluted first.\u003c\/li\u003e\n  \u003cli\u003eHelps protect heaters, pumps, and metallic fittings from corrosion.\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer recommendations for specialty or exotic finishes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: SpaChoice Premium Alkalinity Increaser is aimed at hot tub owners, property managers, and installers who monitor water chemistry and want a reliable, easy-to-use product to raise total alkalinity. It’s especially useful for new fills, spas experiencing pH instability, and routine maintenance where precise incremental adjustments are preferred. If you test regularly, want to prevent scale and corrosion, and prefer granular products that dissolve quickly, this 2-pound unit in a four-pack offers practical value and consistent performance.\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: How much should I add to raise my spa's alkalinity?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Start with 1 ounce (2 tablespoons), circulate 30 minutes, then retest. Repeat small doses until total alkalinity reaches 80–140 ppm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I add the granules directly to the spa water?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: For best results dissolve in a small plastic pail of water first, then add to the spa to avoid surface contact and ensure even distribution.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SpaChoice","offers":[{"title":"Default Title","offer_id":56824253874516,"sku":"B0CWVQKMYY","price":89.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/spachoice-front-packaging-2lb-4pack.jpg?v=1786981933","url":"https:\/\/gardenluxe.co.uk\/products\/spachoice-alkalinity-increaser-for-hot-tub-2-lb-4-pack-fast-dissolving-granules-stabilizes-ph","provider":"Gardenluxe Uk","version":"1.0","type":"link"}