{"product_id":"25-alkalinity-up-box","title":"Pool Season Alkalinity Up, 25 lb Box","description":"\u003cp\u003ePool Season Alkalinity Up is a granular balancer supplied in a 25 lb box. It is 100 percent sodium hydrogen carbonate, the standard product for bringing low total alkalinity back up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat alkalinity does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTotal alkalinity is the buffer that holds pH steady. When it drops too low, pH moves sharply with every dose of acid or shock, and that instability is what leads to plaster staining, etched surfaces and corroded metal fittings. Water that will not hold a pH reading almost always has an alkalinity problem underneath it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUsing it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBroadcast the granules across the surface with the pump running so they disperse and dissolve, then let the water turn over and retest before adding more. Once alkalinity is in range, pH settles and the sanitizer works at the strength you are paying for.\u003c\/p\u003e","brand":"Suncoast","offers":[{"title":"Default Title","offer_id":48627853721812,"sku":"HGH-50-7226","price":34.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_7bae1ede-a889-4585-ac8b-d91cc18050fe.png?v=1788728358","url":"https:\/\/www.activepoolsupply.com\/products\/25-alkalinity-up-box","provider":"Active Pool Supply","version":"1.0","type":"link"}