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Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium carbonate\u003c\/li\u003e\n\u003cli\u003epH 11.4\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003ePrevents corrosion and protects surfaces\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103009857,"sku":"PST-HAV2552PL20","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2552PL20.jpg?v=1775629655"},{"product_id":"durachlor-50-lb-ph-up-increaser","title":"DuraChlor 50 Lb pH Up Increaser","description":"\u003ch3\u003eDuraChlor 50 Lb pH Up Increaser\u003c\/h3\u003e\u003cp\u003eIncreases the pH of pool water for proper balance. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium carbonate\u003c\/li\u003e\n\u003cli\u003epH 11.4\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003ePrevents corrosion and protects surfaces\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103042625,"sku":"PST-HAV2552PL50","price":151.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2552PL50.jpg?v=1775629655"},{"product_id":"durachlor-3-lb-ph-down-reducer","title":"DuraChlor 3 Lb pH Down Reducer","description":"\u003ch3\u003eDuraChlor 3 Lb pH Down Reducer\u003c\/h3\u003e\u003cp\u003eLowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003epH \u0026lt;1 (5% solution)\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003eAlso known as \"dry acid\"\u003c\/li\u003e\n\u003cli\u003ePrevents scaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103075393,"sku":"PST-HAV2599CS20B4","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2599CS20B4.jpg?v=1775629654"},{"product_id":"durachlor-5-lb-ph-down-reducer","title":"DuraChlor 5 Lb pH Down Reducer","description":"\u003ch3\u003eDuraChlor 5 Lb pH Down Reducer\u003c\/h3\u003e\u003cp\u003eLowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003epH \u0026lt;1 (5% solution)\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003eAlso known as \"dry acid\"\u003c\/li\u003e\n\u003cli\u003ePrevents scaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103108161,"sku":"PST-HAV2599CS77C2","price":28.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2599CS77C2.jpg?v=1775629655"},{"product_id":"durachlor-10-lb-ph-down-reducer","title":"DuraChlor 10 Lb pH Down Reducer","description":"\u003ch3\u003eDuraChlor 10 Lb pH Down Reducer\u003c\/h3\u003e\u003cp\u003eLowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003epH \u0026lt;1 (5% solution)\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003eAlso known as \"dry acid\"\u003c\/li\u003e\n\u003cli\u003ePrevents scaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103239233,"sku":"PST-HAV2599CS74C2","price":44.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2599CS74C2.jpg?v=1775631346"},{"product_id":"durachlor-20-lb-ph-down-reducer","title":"DuraChlor 20 Lb pH Down Reducer","description":"\u003ch3\u003eDuraChlor 20 Lb pH Down Reducer\u003c\/h3\u003e\u003cp\u003eLowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003epH \u0026lt;1 (5% solution)\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003eAlso known as \"dry acid\"\u003c\/li\u003e\n\u003cli\u003ePrevents scaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103304769,"sku":"PST-HAV2599PL25","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2599PL25.jpg?v=1775629655"},{"product_id":"durachlor-50-lb-ph-down-reducer","title":"DuraChlor 50 Lb pH Down Reducer","description":"\u003ch3\u003eDuraChlor 50 Lb pH Down Reducer\u003c\/h3\u003e\u003cp\u003eLowers pH and alkalinity in the pool water. Ideal range is 7.2-7.6\u003c\/p\u003e\u003ch4\u003eFeatures \u0026amp; Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eContains: Sodium bisulfate\u003c\/li\u003e\n\u003cli\u003epH \u0026lt;1 (5% solution)\u003c\/li\u003e\n\u003cli\u003eGranular product\u003c\/li\u003e\n\u003cli\u003eAlso known as \"dry acid\"\u003c\/li\u003e\n\u003cli\u003ePrevents scaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43749103370305,"sku":"PST-HAV2599PL50","price":155.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/PST-HAV2599PL50.jpg?v=1775629655"},{"product_id":"ph-balance-starter-kit","title":"pH Balance Starter Kit, DuraChlor pH Up + pH Down + Lamotte Insta-Test 4 Plus","description":"\u003cstyle\u003e  .phkit-wrap, .phkit-wrap * { box-sizing: border-box; }  .phkit-wrap {    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif; 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font-size: 1.05em; color: #1a1a1a; }  .phkit-feature-card p { margin: 0; color: #444; font-size: 0.95em; }  \/* Warning *\/  .phkit-warning {    background: #fff7e0;    border-left: 5px solid #f5a623;    border-radius: 10px;    padding: 18px 22px;    margin-bottom: 36px;  }  .phkit-warning h4 { margin: 0 0 6px; color: #8a5b00; font-size: 1.05em; }  .phkit-warning p { margin: 0; color: #5a3d00; font-size: 0.95em; }  \/* Spec grid *\/  .phkit-spec-grid {    display: grid;    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));    background: #f7f8fc;    border-radius: 14px;    overflow: hidden;  }  .phkit-spec-row {    display: flex;    justify-content: space-between;    gap: 12px;    padding: 12px 18px;    border-bottom: 1px solid #e1e6ed;    font-size: 0.95em;  }  .phkit-spec-key { font-weight: 600; color: #0066cc; }  .phkit-spec-val { color: #1a1a1a; text-align: right; }  \/* FAQ *\/  .phkit-faq-card {    background: #fff;    border: 1px solid #e1e6ed;    border-radius: 10px;    padding: 18px 22px;    margin-bottom: 12px;  }  .phkit-faq-card h4 { margin: 0 0 6px; color: #0066cc; font-size: 1.02em; }  .phkit-faq-card p { margin: 0; color: #333; font-size: 0.95em; }  \/* CTA *\/  .phkit-cta {    background: linear-gradient(135deg, #0080ff 0%, #e8f4fa 100%);    color: #fff;    border-radius: 14px;    padding: 32px 28px;    text-align: center;  }  .phkit-cta h2 { font-size: 1.6em; margin: 0 0 8px; }  .phkit-cta p { margin: 0 0 18px; font-size: 1em; opacity: 0.95; }  .phkit-perks { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }  .phkit-perk {    background: rgba(255,255,255,0.18);    border: 1px solid rgba(255,255,255,0.3);    padding: 6px 14px;    border-radius: 50px;    font-size: 0.88em;    font-weight: 600;  }  \/* Responsive *\/  @media (max-width: 700px) {    .phkit-hero h1 { font-size: 1.5em; }    .phkit-stats { grid-template-columns: repeat(2, 1fr); }  }\u003c\/style\u003e\u003cdiv class=\"phkit-wrap\"\u003e  \u003csection class=\"phkit-hero\"\u003e    \u003ch1\u003epH Balance Starter Kit, DuraChlor pH Up + pH Down + Lamotte Insta-Test 4 Plus\u003c\/h1\u003e    \u003cp class=\"phkit-tagline\"\u003eTest, adjust, repeat. Pool chemistry made simple.\u003c\/p\u003e        \u003cdiv class=\"phkit-badges\"\u003e      \u003cspan class=\"phkit-badge\"\u003e3-Piece Starter Kit\u003c\/span\u003e\u003cspan class=\"phkit-badge\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"phkit-badge\"\u003eTest + Treat in One Box\u003c\/span\u003e\u003cspan class=\"phkit-badge\"\u003ePhosphate Free\u003c\/span\u003e    \u003c\/div\u003e      \u003c\/section\u003e  \u003cp class=\"phkit-intro\"\u003eThe \u003cstrong\u003epH Balance Starter Kit (SKU PST-KIT-PH)\u003c\/strong\u003e is the everything-you-need-to-balance-pH bundle for any residential pool. You get \u003cstrong\u003e2 lb of DuraChlor pH Up\u003c\/strong\u003e (soda ash) to raise low pH, \u003cstrong\u003e3 lb of DuraChlor pH Down\u003c\/strong\u003e (sodium bisulfate) to bring high pH back in range, and a bottle of \u003cstrong\u003eLamotte Insta-Test 4 Plus\u003c\/strong\u003e strips so you actually know which way to dose before you pour anything in. Test, adjust, retest.\u003c\/p\u003e  \u003csection class=\"phkit-stats\"\u003e    \u003cdiv class=\"phkit-stat\"\u003e\n\u003cdiv class=\"phkit-stat-value\"\u003e3-Piece\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat-label\"\u003eStarter Kit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat\"\u003e\n\u003cdiv class=\"phkit-stat-value\"\u003e2 lb\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat-label\"\u003epH Up (Soda Ash)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat\"\u003e\n\u003cdiv class=\"phkit-stat-value\"\u003e3 lb\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat-label\"\u003epH Down (Dry Acid)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat\"\u003e\n\u003cdiv class=\"phkit-stat-value\"\u003e4-Way\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat-label\"\u003eTest Strips\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat\"\u003e\n\u003cdiv class=\"phkit-stat-value\"\u003e7.2-7.8\u003c\/div\u003e\n\u003cdiv class=\"phkit-stat-label\"\u003eTarget pH Range\u003c\/div\u003e\n\u003c\/div\u003e  \u003c\/section\u003e  \u003csection class=\"phkit-section\"\u003e    \u003ch2\u003eWhy PST Customers Pick This\u003c\/h2\u003e    \u003cdiv class=\"phkit-feature-grid\"\u003e      \u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e📈\u003c\/div\u003e\n\u003ch5\u003eRaise Low pH\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eDuraChlor pH Up\u003c\/strong\u003e (MPN C002552-CS20B2) is pure sodium carbonate (soda ash). A typical 6 oz dose raises pH about 0.2 in a 10,000 gallon pool without spiking alkalinity hard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e📉\u003c\/div\u003e\n\u003ch5\u003eLower High pH\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eDuraChlor pH Down\u003c\/strong\u003e (MPN C002599-CS20B4) is granular sodium bisulfate. Roughly 12 to 16 oz per 10,000 gallons drops pH about 0.2, far safer to handle than muriatic acid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e🎯\u003c\/div\u003e\n\u003ch5\u003eTest First, Then Dose\u003c\/h5\u003e\n\u003cp\u003eThe \u003cstrong\u003eLamotte Insta-Test 4 Plus 3032\u003c\/strong\u003e strip reads \u003cstrong\u003efree chlorine, pH, total alkalinity, and stabilizer (cyanuric acid)\u003c\/strong\u003e in one dip. Color-match against the bottle label and you have a full chemistry snapshot in 30 seconds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e🛡️\u003c\/div\u003e\n\u003ch5\u003eSafer Than Liquid Acid\u003c\/h5\u003e\n\u003cp\u003eGranular pH Down skips the \u003cstrong\u003efumes, splash hazard, and storage headache\u003c\/strong\u003e of muriatic acid. Easier to dose, easier to store, and friendlier to vinyl liners when used per label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e🌊\u003c\/div\u003e\n\u003ch5\u003eAny Sanitizer, Any Surface\u003c\/h5\u003e\n\u003cp\u003eCompatible with \u003cstrong\u003echlorine, bromine, salt, and mineral\u003c\/strong\u003e systems and safe on vinyl, plaster, pebble, and fiberglass when applied per label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-feature-card\"\u003e\n\u003cdiv class=\"phkit-emoji\"\u003e🧰\u003c\/div\u003e\n\u003ch5\u003ePerfect for Pool Openings\u003c\/h5\u003e\n\u003cp\u003eSpring start-up and post-fill water almost always need a pH adjustment in one direction or the other. Having both options plus a test strip on the shelf means you fix it the first weekend.\u003c\/p\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003cdiv class=\"phkit-warning\"\u003e    \u003ch4\u003eHandling Notice\u003c\/h4\u003e    \u003cp\u003eAlways add chemicals to water, never water to chemicals. \u003cstrong\u003eDo not mix pH Up and pH Down\u003c\/strong\u003e in the same dose, they neutralize each other and waste product. Wait at least 4 hours between adding opposing pH adjusters and retest before re-dosing. Keep test strips dry, capped, and out of direct sun. All chemical sales are final.\u003c\/p\u003e  \u003c\/div\u003e    \u003csection class=\"phkit-section\"\u003e    \u003ch2\u003eSpecifications\u003c\/h2\u003e    \u003cdiv class=\"phkit-spec-grid\"\u003e      \u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eKit SKU\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003ePST-KIT-PH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Up\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eDuraChlor 2 lb, MPN C002552-CS20B2 (SKU PST-HAV2552CS20B2)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Up Active\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eSodium carbonate (soda ash)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Up Use\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eRaises pool pH; typical dose 6 oz per 10,000 gal raises pH ~0.2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Down\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eDuraChlor 3 lb, MPN C002599-CS20B4 (SKU PST-HAV2599CS20B4)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Down Active\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eSodium bisulfate (dry acid)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003epH Down Use\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eLowers pool pH; typical dose 12 to 16 oz per 10,000 gal lowers pH ~0.2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eTest Strips\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eLamotte Insta-Test 4 Plus, MPN 3032 (SKU PST-3032)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eTest Strip Parameters\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eFree chlorine, pH, total alkalinity, stabilizer (cyanuric acid)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eTarget pH Range\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003e7.2 to 7.8 (ideal 7.4 to 7.6)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eTarget Total Alkalinity\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003e80 to 120 ppm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eSanitizer Compatibility\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eChlorine, bromine, salt, mineral\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eSurface Compatibility\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eVinyl, plaster, pebble, fiberglass\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eCombined Shipping Weight\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003e5.40 lb\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eShips From\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eBloomfield, CT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"phkit-spec-row\"\u003e\n\u003cspan class=\"phkit-spec-key\"\u003eReturn Policy\u003c\/span\u003e\u003cspan class=\"phkit-spec-val\"\u003eNon-returnable, all chemical sales final\u003c\/span\u003e\n\u003c\/div\u003e    \u003c\/div\u003e  \u003c\/section\u003e    \u003csection class=\"phkit-section\"\u003e    \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e        \u003cdiv class=\"phkit-faq-card\"\u003e      \u003ch4\u003eWhen do I use pH Up vs pH Down?\u003c\/h4\u003e      \u003cp\u003eTest first. If pH is \u003cstrong\u003ebelow 7.2\u003c\/strong\u003e, dose pH Up (soda ash). If pH is \u003cstrong\u003eabove 7.8\u003c\/strong\u003e, dose pH Down (sodium bisulfate). Always retest after 4 hours and at least one full pump turnover before adjusting again.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"phkit-faq-card\"\u003e      \u003ch4\u003eHow much should I dose for a typical pool?\u003c\/h4\u003e      \u003cp\u003eRule of thumb for a \u003cstrong\u003e10,000 gallon\u003c\/strong\u003e pool: about \u003cstrong\u003e6 oz of pH Up\u003c\/strong\u003e raises pH ~0.2, about \u003cstrong\u003e12 to 16 oz of pH Down\u003c\/strong\u003e lowers pH ~0.2. Scale linearly with pool volume, and always under-dose on the first round, retest, then top up.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"phkit-faq-card\"\u003e      \u003ch4\u003eWhy is total alkalinity on the test strip and not on the kit?\u003c\/h4\u003e      \u003cp\u003eTotal alkalinity is the \u003cstrong\u003ebuffer that keeps pH stable\u003c\/strong\u003e. The strip flags it so you can spot the real problem, sometimes pH bounces because TA is too low (under 80 ppm) or too high (over 120 ppm). For TA adjustment, add baking soda to raise or muriatic acid in slow doses to lower.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"phkit-faq-card\"\u003e      \u003ch4\u003eCan I use pH Down instead of muriatic acid?\u003c\/h4\u003e      \u003cp\u003eYes, that is the point. \u003cstrong\u003eSodium bisulfate (dry acid)\u003c\/strong\u003e drops pH the same way muriatic does, but it ships safely, stores in a sealed bag, and pours without fumes. The only trade-off is that dry acid \u003cstrong\u003eadds a small amount of sulfate\u003c\/strong\u003e, not an issue for residential pools but worth noting on plaster pools with hard fill water.\u003c\/p\u003e    \u003c\/div\u003e        \u003cdiv class=\"phkit-faq-card\"\u003e      \u003ch4\u003eHow long do the Insta-Test strips stay accurate?\u003c\/h4\u003e      \u003cp\u003eStored capped, dry, and out of sun, the strips are \u003cstrong\u003eaccurate for about 2 years from manufacture\u003c\/strong\u003e. Look at the lot date on the bottle. Replace the bottle if the color pads start to discolor or if dipped strips give wildly different readings between consecutive tests.\u003c\/p\u003e    \u003c\/div\u003e      \u003c\/section\u003e    \u003csection class=\"phkit-cta\"\u003e    \u003ch2\u003eOrder the pH Balance Starter Kit\u003c\/h2\u003e    \u003cp\u003eAuthorized DuraChlor and Lamotte dealer. Ships next business day from our chemical warehouse and backed by PST Pool Supplies' service team.\u003c\/p\u003e    \u003cdiv class=\"phkit-perks\"\u003e      \u003cspan class=\"phkit-perk\"\u003eFree Shipping\u003c\/span\u003e\u003cspan class=\"phkit-perk\"\u003eShips Next Business Day\u003c\/span\u003e\u003cspan class=\"phkit-perk\"\u003eDuraChlor + Lamotte Bundle\u003c\/span\u003e\u003cspan class=\"phkit-perk\"\u003eBundle Pricing\u003c\/span\u003e    \u003c\/div\u003e  \u003c\/section\u003e\n\u003c\/div\u003e","brand":"DuraChlor","offers":[{"title":"Default Title","offer_id":43969335361601,"sku":"PST-KIT-PH","price":36.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/1623\/0209\/files\/balance-bundle.jpg?v=1779582639"}],"url":"https:\/\/www.pstpoolsupplies.com\/collections\/balancing-chemicals.oembed","provider":"PST Pool Supplies","version":"1.0","type":"link"}