{"product_id":"spa-pure-ph-down-c002625-cs20b8","title":"Spa Pure pH Down 24 oz Granular pH Decreaser C002625-CS20B8","description":"\u003cp\u003e\u003cstrong\u003eSpa Pure pH Down 24 oz Granular pH Decreaser C002625-CS20B8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Spa Pure pH Down C002625-CS20B8 is a granular dry acid that lowers high pH in spa and hot tub water quickly and safely. The sodium bisulfate formula starts working the moment it hits the water, with no waiting period before you soak — and bringing high pH back into range prevents the scale buildup, cloudy water, and wasted sanitizer that alkaline water causes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🚩 PRO TIP:\u003c\/strong\u003e Add Spa Pure pH Down C002625-CS20B8 in measured doses with the circulation running, then wait at least 30 minutes before adding a different balancer — stacking pH and alkalinity products back to back makes your test readings hard to trust.\u003c\/p\u003e\n\u003ch3\u003ePRODUCT FEATURES \u0026amp; SPECIFICATIONS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Spa Pure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e C002625-CS20B8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e pH Decreaser (Balancer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Ingredient:\u003c\/strong\u003e Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Granular (dry acid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Size:\u003c\/strong\u003e 24 oz (1.5 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 1\/4 oz per 500 gallons when pH is 7.2 to 8.0; 1\/2 oz per 500 gallons when pH is above 8.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Range:\u003c\/strong\u003e pH 7.2 to 7.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Chlorine, bromine, biguanide, mineral, and ozone systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFREQUENTLY ASKED QUESTIONS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow is Spa Pure pH Down C002625-CS20B8 different from a liquid pH decreaser?\u003c\/strong\u003e The Spa Pure pH Down C002625-CS20B8 is a dry granular sodium bisulfate — there is no liquid acid to spill, splash, or fume, and the small measured doses make it easy to lower pH in controlled steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes Spa Pure pH Down C002625-CS20B8 lower alkalinity too?\u003c\/strong\u003e Yes — the Spa Pure pH Down C002625-CS20B8 lowers pH and, with it, some total alkalinity. If both readings are far out of range, balance total alkalinity first, then fine-tune pH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow soon can I use the spa after adding Spa Pure pH Down C002625-CS20B8?\u003c\/strong\u003e The Spa Pure pH Down C002625-CS20B8 starts working immediately. Let the water circulate and retest to confirm the pH is in the 7.2 to 7.6 range before soaking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWHY SHOP WITH AL'S COOL POOL STORE?:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fast, reliable shipping on every order\u003c\/li\u003e\n\u003cli\u003e✅ Genuine OEM and top-brand parts only\u003c\/li\u003e\n\u003cli\u003e✅ Knowledgeable pool \u0026amp; spa experts ready to help\u003c\/li\u003e\n\u003cli\u003e✅ Hassle-free returns and satisfaction guarantee\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spa Pure","offers":[{"title":"Default Title","offer_id":46445475987591,"sku":"C002625-CS20B8","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0634\/1217\/4983\/files\/haviland-spapure-ph-down-spa2625cs20b8-ph-decreaser-complete.png?v=1794052995","url":"https:\/\/alscoolpoolstore.com\/products\/spa-pure-ph-down-c002625-cs20b8","provider":"Al's Cool Pool Store","version":"1.0","type":"link"}