{"product_id":"robelle-pool-ph-up-sodium-carbonate-25-lb-bag-fast-acting-ph-adjustment","title":"Robelle Pool pH Up Sodium Carbonate - 25 lb Bag, Fast-Acting pH Adjustment","description":"\u003cp\u003e\u003cstrong\u003eRobelle 25-Pounds Premium pH Up is a high-purity sodium carbonate formula designed to raise and stabilize swimming pool pH quickly and predictably.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMaintaining the right pH in your pool keeps water comfortable, protects equipment and surfaces, and helps sanitizers work effectively. Robelle pH Up comes in a concentrated 25-pound bag, formulated to correct low pH (acidic conditions) and bring your pool toward the recommended range. This product is intended for routine correction of pH and is manufactured for ease of use when mixed and applied correctly.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use Robelle pH Up safely and effectively?\u003c\/h3\u003e\n\u003cp\u003eTest your pool pH first with a reliable kit. If the reading is 7.2 or lower, follow the dosage chart included with the bag, pre-dissolve the measured amount in a plastic pail of water, then slowly pour the solution around the pool perimeter while the circulation pump runs. Operate the filter system for at least one hour after application, then retest; repeat as needed until the pH reaches 7.4–7.6.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways test pH before dosing; treat only when pH is 7.2 or below.\u003c\/li\u003e\n  \u003cli\u003ePre-dissolve in a plastic pail—do not add water to the chemical in concentrated form.\u003c\/li\u003e\n  \u003cli\u003ePour slowly around pool perimeter with pump running to ensure distribution.\u003c\/li\u003e\n  \u003cli\u003eRetest after one hour; repeat dosing in small increments if necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does Robelle pH Up contain and how does it work?\u003c\/h3\u003e\n\u003cp\u003eThis product is primarily sodium carbonate (soda ash), a widely used alkaline agent for pools. It neutralizes excess acidity in pool water, raising total pH and helping to maintain the recommended 7.4–7.6 range. Because it is a dry, concentrated granular formula, it raises pH rapidly and is suitable for both routine maintenance and larger corrections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActive ingredient: sodium carbonate (soda ash) for fast pH increase.\u003c\/li\u003e\n  \u003cli\u003eDry, granular form dissolves when pre-mixed in a plastic pail.\u003c\/li\u003e\n  \u003cli\u003eConcentrated 25-pound bag ideal for seasonal or large-volume use.\u003c\/li\u003e\n  \u003cli\u003eHelps protect pool surfaces and equipment by reducing acidic conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill using this product affect alkalinity and pool surfaces?\u003c\/h3\u003e\n\u003cp\u003eRaising pH with sodium carbonate can also increase total alkalinity, so check both pH and alkalinity when making adjustments. Proper pH balance reduces the risk of etching or erosion on plaster, concrete and metal fittings, while also improving bather comfort. Adjust gradually and retest to avoid overshooting target ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMonitor total alkalinity alongside pH to prevent large swings.\u003c\/li\u003e\n  \u003cli\u003eCorrecting low pH helps prevent etching or surface damage over time.\u003c\/li\u003e\n  \u003cli\u003eTreat in stages and retest to maintain stable, predictable chemistry.\u003c\/li\u003e\n  \u003cli\u003eIf alkalinity rises too much, use a recommended alkalinity reducer per instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Robelle 25-Pounds Premium pH Up is made for residential pool owners, service professionals and property managers who need a reliable, large-format solution to correct low pH. Choose this product if you want a concentrated sodium carbonate formulation to bring your pool pH into the recommended 7.4–7.6 range with straightforward application steps. It’s especially useful for larger pools, frequent corrections, or seasonal startups—just follow the included dosage chart, use proper safety precautions, and always retest after treatment.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFeatures:\n    \u003cul\u003e\n      \u003cli\u003eSodium carbonate for pools\u003c\/li\u003e\n      \u003cli\u003eRaises pH rapidly\u003c\/li\u003e\n      \u003cli\u003ePrevents erosion or etching of pool surfaces\u003c\/li\u003e\n      \u003cli\u003eAdjust and maintain pH at 7.2-7.6\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSafety note: wear appropriate personal protective equipment (gloves and eye protection), avoid inhaling dust, and store in a cool, dry place away from incompatible materials. For detailed instructions, refer to the product label and the included dosing chart before every use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How much should I add to raise my pool pH?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Follow the included dosage chart; pre-dissolve measured amounts and add gradually, retesting after one hour until pH reaches 7.4–7.6.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I add Robelle pH Up directly to the pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Pre-dissolve in a plastic pail first, then pour slowly around the perimeter with the circulation system running.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Robelle","offers":[{"title":"Default Title","offer_id":56824023384404,"sku":"B01N6XZXQZ","price":110.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/robelle-front-packaging_5b4e2291-a9c4-4244-b1b8-4bdad5fd2baf.jpg?v=1786979832","url":"https:\/\/gardenluxe.co.uk\/products\/robelle-pool-ph-up-sodium-carbonate-25-lb-bag-fast-acting-ph-adjustment","provider":"Gardenluxe Uk","version":"1.0","type":"link"}