{"product_id":"pool-season-alkalinity-up","title":"Pool Season Alkalinity Up, 5 lb Pouch","description":"\u003cp\u003ePool Season Alkalinity Up is a granular total alkalinity increaser in a 5 lb pouch. It is 100% sodium hydrogen carbonate, the same chemistry as sodium bicarbonate, with nothing else in the bag.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat alkalinity does for you\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTotal alkalinity is the buffer that decides how hard pH is to move. When it is low, pH bounces around after every addition and never settles, which is the state that causes staining, corrosion of pool surfaces and metal, and sanitizer that never quite keeps up. Raising alkalinity into range makes the rest of the water chemistry hold still long enough to manage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUsing it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe product is granular and made to be simple: broadcast it and let circulation carry it through the pool. Test after the water has turned over rather than immediately, and correct alkalinity before chasing pH, because pH will not hold while the buffer is low.\u003c\/p\u003e","brand":"Pool Season","offers":[{"title":"Default Title","offer_id":48633786237140,"sku":"HGH-50-7207","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_0c294db9-7286-4fc0-a45e-de7d5133ddb8.png?v=1788816476","url":"https:\/\/www.activepoolsupply.com\/products\/pool-season-alkalinity-up","provider":"Active Pool Supply","version":"1.0","type":"link"}