{"product_id":"3-pack-1-5-lb-bottle-ph-down-for-swimming-pools-and-spas-4-5-lbs","title":"pH Down Balancer for Swimming Pools and Spas, 4.5 lb (3 Pack)","description":"\u003cp\u003eThis is a sodium bisulfate pH decreaser for swimming pools and spas, supplied as three 1.5 lb bottles for 4.5 lb in total.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePool pH drifts up over time, and high pH is what makes chlorine sluggish, water cloudy and surfaces prone to scale. Sodium bisulfate is the dry acid form of pH decreaser, and it brings the reading back down without the handling problems of liquid muriatic acid.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDosing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOne pound, sixteen ounces, lowers pH from 7.8 or 8.0 to 7.2 in 10,000 gallons. Work out your own dose from your pool volume and how far the reading has drifted, then let the water turn over completely and retest before you add any more. Overshooting on the way down means adding increaser to climb back, and chasing the number in both directions is how people end up with wildly swinging chemistry.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHandling\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is still an acid, just in dry form. Add product to water and never water to product, broadcast it slowly over a running return so it disperses instead of piling up on the floor, and keep the pump running while it mixes. Store the unopened bottles dry and away from other pool chemicals.\u003c\/p\u003e","brand":"Active Pool Supply","offers":[{"title":"Default Title","offer_id":48628965834964,"sku":"PZ-50-0002_3-Pack","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_62e7685a-6ad6-4782-92a1-c5f36c97a8ff.png?v=1788758506","url":"https:\/\/www.activepoolsupply.com\/products\/3-pack-1-5-lb-bottle-ph-down-for-swimming-pools-and-spas-4-5-lbs","provider":"Active Pool Supply","version":"1.0","type":"link"}