{"product_id":"lawrasons-ph-minus-20kg-27082p85-sodium-bisulfate-granular-pool-ph-reducer-alkalinity-control","title":"pH Minus Lawrasons 20kg – 27082P85 | Professional Dry Acid pH Down for Pools (Perfect Seasonal Size for Salt Pools)","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:ebc4a414-cd22-4ecc-8b6d-1d9dedff6fa3-29\" data-testid=\"conversation-turn-60\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"05d8a32d-12bf-40fa-a20a-adb6209146af\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"166\" data-end=\"484\"\u003eMaintain perfectly balanced pool water with \u003cstrong data-start=\"210\" data-end=\"261\"\u003eLawrasons pH Minus 20kg (Product Code 27082P85)\u003c\/strong\u003e — a professional-grade granular \u003cstrong data-start=\"294\" data-end=\"310\"\u003epH decreaser\u003c\/strong\u003e formulated with \u003cstrong data-start=\"327\" data-end=\"347\"\u003esodium bisulfate\u003c\/strong\u003e. This powerful dry acid safely lowers high pH levels and helps reduce total alkalinity in both above ground and inground swimming pools.\u003c\/p\u003e\n\u003cp data-start=\"486\" data-end=\"789\"\u003eFor \u003cstrong data-start=\"490\" data-end=\"509\"\u003esaltwater pools\u003c\/strong\u003e, the 20kg size is the ideal seasonal supply. Salt chlorine generators naturally cause pH to rise over time due to aeration and chlorine production, making regular pH adjustment essential. This bulk size provides consistent, reliable control throughout the entire swimming season.\u003c\/p\u003e\n\u003chr data-start=\"791\" data-end=\"794\"\u003e\n\u003ch2 data-start=\"796\" data-end=\"824\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cp data-start=\"826\" data-end=\"934\"\u003e\u003cstrong data-start=\"826\" data-end=\"865\"\u003eActive Ingredient: Sodium Bisulfate\u003c\/strong\u003e\u003cbr data-start=\"865\" data-end=\"868\"\u003eA dependable dry acid formula that lowers pH and total alkalinity.\u003c\/p\u003e\n\u003cp data-start=\"936\" data-end=\"1078\"\u003e\u003cstrong data-start=\"936\" data-end=\"962\"\u003ePerfect for Salt Pools\u003c\/strong\u003e\u003cbr data-start=\"962\" data-end=\"965\"\u003eSalt systems frequently require pH adjustment — 20kg is typically the right amount for a full residential season.\u003c\/p\u003e\n\u003cp data-start=\"1080\" data-end=\"1205\"\u003e\u003cstrong data-start=\"1080\" data-end=\"1113\"\u003ePrevents Scale \u0026amp; Cloudy Water\u003c\/strong\u003e\u003cbr data-start=\"1113\" data-end=\"1116\"\u003eReduces calcium buildup on liners, pool walls, salt cells, plumbing, and heat exchangers.\u003c\/p\u003e\n\u003cp data-start=\"1207\" data-end=\"1293\"\u003e\u003cstrong data-start=\"1207\" data-end=\"1239\"\u003eImproves Chlorine Efficiency\u003c\/strong\u003e\u003cbr data-start=\"1239\" data-end=\"1242\"\u003eBalanced pH ensures chlorine sanitizes effectively.\u003c\/p\u003e\n\u003cp data-start=\"1295\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1295\" data-end=\"1323\"\u003eEnhances Swimmer Comfort\u003c\/strong\u003e\u003cbr data-start=\"1323\" data-end=\"1326\"\u003eReduces irritation to skin, eyes, nose, and throat.\u003c\/p\u003e\n\u003cp data-start=\"1379\" data-end=\"1505\"\u003e\u003cstrong data-start=\"1379\" data-end=\"1424\"\u003eSafer Alternative to Liquid Muriatic Acid\u003c\/strong\u003e\u003cbr data-start=\"1424\" data-end=\"1427\"\u003eGranular dry acid is easier to store, handle, and measure with no harsh fumes.\u003c\/p\u003e\n\u003cp data-start=\"1507\" data-end=\"1597\"\u003e\u003cstrong data-start=\"1507\" data-end=\"1541\"\u003eCompatible with All Pool Types\u003c\/strong\u003e\u003cbr data-start=\"1541\" data-end=\"1544\"\u003eSafe for vinyl liner, fiberglass, and concrete pools.\u003c\/p\u003e\n\u003chr data-start=\"1599\" data-end=\"1602\"\u003e\n\u003ch2 data-start=\"1604\" data-end=\"1630\"\u003eWhy Proper pH Matters\u003c\/h2\u003e\n\u003cul data-start=\"1632\" data-end=\"1802\"\u003e\n\u003cli data-start=\"1632\" data-end=\"1715\"\u003e\n\u003cp data-start=\"1634\" data-end=\"1715\"\u003e\u003cstrong data-start=\"1634\" data-end=\"1658\"\u003eHigh pH (above 7.8):\u003c\/strong\u003e Scaling, cloudy water, reduced chlorine effectiveness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1716\" data-end=\"1802\"\u003e\n\u003cp data-start=\"1718\" data-end=\"1802\"\u003e\u003cstrong data-start=\"1718\" data-end=\"1741\"\u003eLow pH (below 7.2):\u003c\/strong\u003e Corrosion, heater damage, liner wrinkling, and irritation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1804\" data-end=\"1934\"\u003eMaintaining pH between \u003cstrong data-start=\"1827\" data-end=\"1840\"\u003e7.2 – 7.8\u003c\/strong\u003e protects equipment, especially heaters and salt cells, and keeps water clear and comfortable.\u003c\/p\u003e\n\u003cp data-start=\"1936\" data-end=\"1997\"\u003e\u003cstrong data-start=\"1936\" data-end=\"1948\"\u003ePro Tip:\u003c\/strong\u003e Unbalanced pH can cause vinyl liners to wrinkle.\u003c\/p\u003e\n\u003chr data-start=\"1999\" data-end=\"2002\"\u003e\n\u003ch2 data-start=\"2004\" data-end=\"2027\"\u003eDirections for Use\u003c\/h2\u003e\n\u003cp data-start=\"2029\" data-end=\"2122\"\u003e\u003cstrong data-start=\"2029\" data-end=\"2040\"\u003eDosage:\u003c\/strong\u003e\u003cbr data-start=\"2040\" data-end=\"2043\"\u003eAdd \u003cstrong data-start=\"2047\" data-end=\"2097\"\u003e100g per 10,000 litres (approx. 2,200 gallons)\u003c\/strong\u003e when pH rises above 7.8.\u003c\/p\u003e\n\u003col data-start=\"2124\" data-end=\"2258\"\u003e\n\u003cli data-start=\"2124\" data-end=\"2187\"\u003e\n\u003cp data-start=\"2127\" data-end=\"2187\"\u003eWith pump running, sprinkle evenly over the water surface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2188\" data-end=\"2215\"\u003e\n\u003cp data-start=\"2191\" data-end=\"2215\"\u003eTest pH every 2 hours.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2216\" data-end=\"2258\"\u003e\n\u003cp data-start=\"2219\" data-end=\"2258\"\u003eRepeat until pH returns to 7.2 – 7.8.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"2260\" data-end=\"2387\"\u003eAfter superchlorination, dissolve in a bucket of water before adding. Always adjust pH before adding chlorine for best results.\u003c\/p\u003e\n\u003chr data-start=\"2389\" data-end=\"2392\"\u003e\n\u003ch1 data-start=\"2394\" data-end=\"2434\"\u003eAverage Seasonal pH Down Usage Guide\u003c\/h1\u003e\n\u003cp data-start=\"2436\" data-end=\"2505\"\u003e(Estimates vary depending on weather, rainfall, and salt system use.)\u003c\/p\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2507\" data-end=\"3062\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2507\" data-end=\"2581\"\u003e\n\u003ctr data-start=\"2507\" data-end=\"2581\"\u003e\n\u003cth data-start=\"2507\" data-end=\"2519\" data-col-size=\"sm\" class=\"\"\u003ePool Type\u003c\/th\u003e\n\u003cth data-start=\"2519\" data-end=\"2531\" data-col-size=\"sm\" class=\"\"\u003ePool Size\u003c\/th\u003e\n\u003cth data-start=\"2531\" data-end=\"2548\" data-col-size=\"sm\" class=\"\"\u003eApprox. Volume\u003c\/th\u003e\n\u003cth data-start=\"2548\" data-end=\"2581\" data-col-size=\"sm\" class=\"\"\u003eAvg. Seasonal pH Minus Needed\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2658\" data-end=\"3062\"\u003e\n\u003ctr data-start=\"2658\" data-end=\"2712\"\u003e\n\u003ctd data-start=\"2658\" data-end=\"2678\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2660\" data-end=\"2677\"\u003eHot Tub \/ Spa\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2678\" data-end=\"2694\" data-col-size=\"sm\"\u003e1,000–2,000 L\u003c\/td\u003e\n\u003ctd data-start=\"2694\" data-end=\"2702\" data-col-size=\"sm\"\u003eSmall\u003c\/td\u003e\n\u003ctd data-start=\"2702\" data-end=\"2712\" data-col-size=\"sm\"\u003e1–2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2713\" data-end=\"2776\"\u003e\n\u003ctd data-start=\"2713\" data-end=\"2741\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2715\" data-end=\"2740\"\u003e10–12 ft Above Ground\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2741\" data-end=\"2758\" data-col-size=\"sm\"\u003e5,000–12,000 L\u003c\/td\u003e\n\u003ctd data-start=\"2758\" data-end=\"2766\" data-col-size=\"sm\"\u003eSmall\u003c\/td\u003e\n\u003ctd data-start=\"2766\" data-end=\"2776\" data-col-size=\"sm\"\u003e5–8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2777\" data-end=\"2843\"\u003e\n\u003ctd data-start=\"2777\" data-end=\"2805\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2779\" data-end=\"2804\"\u003e15–18 ft Above Ground\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2805\" data-end=\"2823\" data-col-size=\"sm\"\u003e15,000–25,000 L\u003c\/td\u003e\n\u003ctd data-start=\"2823\" data-end=\"2832\" data-col-size=\"sm\"\u003eMedium\u003c\/td\u003e\n\u003ctd data-start=\"2832\" data-end=\"2843\" data-col-size=\"sm\"\u003e8–15 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2844\" data-end=\"2910\"\u003e\n\u003ctd data-start=\"2844\" data-end=\"2872\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2846\" data-end=\"2871\"\u003e21–24 ft Above Ground\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2872\" data-end=\"2890\" data-col-size=\"sm\"\u003e30,000–50,000 L\u003c\/td\u003e\n\u003ctd data-start=\"2890\" data-end=\"2898\" data-col-size=\"sm\"\u003eLarge\u003c\/td\u003e\n\u003ctd data-start=\"2898\" data-end=\"2910\" data-col-size=\"sm\"\u003e15–20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2911\" data-end=\"2981\"\u003e\n\u003ctd data-start=\"2911\" data-end=\"2937\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2913\" data-end=\"2936\"\u003eSmall Inground Pool\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2937\" data-end=\"2955\" data-col-size=\"sm\"\u003e50,000–70,000 L\u003c\/td\u003e\n\u003ctd data-start=\"2955\" data-end=\"2969\" data-col-size=\"sm\"\u003eResidential\u003c\/td\u003e\n\u003ctd data-start=\"2969\" data-end=\"2981\" data-col-size=\"sm\"\u003e18–25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2982\" data-end=\"3062\"\u003e\n\u003ctd data-start=\"2982\" data-end=\"3008\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2984\" data-end=\"3007\"\u003eLarge Inground Pool\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"3008\" data-end=\"3028\" data-col-size=\"sm\"\u003e75,000–100,000+ L\u003c\/td\u003e\n\u003ctd data-start=\"3028\" data-end=\"3053\" data-col-size=\"sm\"\u003eResidential\/Commercial\u003c\/td\u003e\n\u003ctd data-start=\"3053\" data-end=\"3062\" data-col-size=\"sm\"\u003e25kg+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"3064\" data-end=\"3180\"\u003eFor most \u003cstrong data-start=\"3073\" data-end=\"3118\"\u003esaltwater above ground and inground pools\u003c\/strong\u003e, one 20kg pail typically covers a full season of adjustments.\u003c\/p\u003e\n\u003chr data-start=\"3182\" data-end=\"3185\"\u003e\n\u003ch2 data-start=\"3187\" data-end=\"3231\"\u003eProfessional Pool Maintenance Made Easy\u003c\/h2\u003e\n\u003cp data-start=\"3233\" data-end=\"3533\"\u003eThe 20kg (approx. 44 lb) container offers long-lasting value for residential and commercial pool owners. Whether correcting high pH after heavy rainfall, increased swimmer load, or routine salt system adjustments, Lawrasons pH Minus 27082P85 delivers dependable, easy-to-handle water balance control.\u003c\/p\u003e\n\u003cp data-start=\"3535\" data-end=\"3700\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eKeep your pool water clear, comfortable, and equipment-protected all season long with Lawrasons pH Minus — the trusted dry acid solution for precision pH management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px absolute bottom-0\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"PTL Direct","offers":[{"title":"Default Title","offer_id":47690794533002,"sku":"27082P85","price":43.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/0989\/9658\/files\/PHDown20kg.jpg?v=1771251720","url":"https:\/\/www.poolstubsliners.com\/products\/lawrasons-ph-minus-20kg-27082p85-sodium-bisulfate-granular-pool-ph-reducer-alkalinity-control","provider":"PTL Direct","version":"1.0","type":"link"}