{"product_id":"united-chemical-yellow-treat-pool-algaecide-2-lb-fast-acting-concentrated-mustard-yellow-algae-killer","title":"United Chemical Yellow Treat Pool Algaecide 2 lb — Fast-Acting Concentrated Mustard \u0026 Yellow Algae Killer","description":"\u003cp\u003e\u003cstrong\u003eYellow Treat by United Chemical is a concentrated algaecide designed to eliminate mustard and yellow algae quickly in saltwater, chlorine, and freshwater pools.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIntroduced in 1981, Yellow Treat has a long track record as a targeted solution for stubborn yellow and mustard algae. Its concentrated formula requires only 5 ounces per 10,000 gallons to treat heavy infestations, dissolves directly into pool water, and avoids staining pool surfaces. That combination delivers a fast, professional-strength response that fits both emergency cleanups and routine maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will Yellow Treat clear yellow or mustard algae?\u003c\/h3\u003e\n\u003cp\u003eYellow Treat is engineered to act fast on mustard and yellow algae; many users see visible improvement within 24 hours. Complete clearing depends on algae density, filtration, and follow-up brushing and shocking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVisible results frequently within one day for light to moderate blooms.\u003c\/li\u003e\n  \u003cli\u003eDense or long-established infestations may need 24–72 hours plus brushing.\u003c\/li\u003e\n  \u003cli\u003eWorks with standard pool filtration; run pump and filter continuously during treatment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this product work in saltwater and chlorine pools?\u003c\/h3\u003e\n\u003cp\u003eYes — Yellow Treat is compatible with saltwater, chlorinated, and freshwater systems, making it versatile for most residential and commercial pools. There’s no special system conversion required before application.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSafe for use in both above-ground and inground pools.\u003c\/li\u003e\n  \u003cli\u003eMixes directly into pool water without pre-dilution.\u003c\/li\u003e\n  \u003cli\u003eFollow with recommended shock to oxidize remaining organic material.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply Yellow Treat for best results?\u003c\/h3\u003e\n\u003cp\u003eApplication is straightforward: measure, pour, brush, and run the filter. Use the stated dosing—5 ounces per 10,000 gallons—and pair with brushing and a subsequent shock for thorough cleanup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasure 5 ounces per 10,000 gallons (one bag or capful per 10,000 gallons).\u003c\/li\u003e\n  \u003cli\u003ePour across the pool surface, brush affected areas, then run filtration continuously.\u003c\/li\u003e\n  \u003cli\u003eShock the pool afterward to help remove dead algae and restore water clarity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDoes Yellow Treat stain pool surfaces or require special care?\u003c\/h3\u003e\n\u003cp\u003eNo staining ingredients are included in the formula, and the product is formulated to be gentle on pool finishes while tough on algae. Normal post-treatment filtration and brushing keep surfaces clean and help avoid residue buildup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains no staining agents—safe for vinyl, plaster, tile, and fiberglass finishes.\u003c\/li\u003e\n  \u003cli\u003eRinse and brush surfaces as algae die off to prevent accumulation.\u003c\/li\u003e\n  \u003cli\u003eContinue routine water testing after treatment to rebalance chemistry if needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: United Chemical’s Yellow Treat is suited for homeowners, pool service professionals, and facility managers who need a reliable, no-frills solution for mustard and yellow algae. Whether you maintain a small above-ground backyard pool or manage a large inground installation, Yellow Treat offers a compact, professional-strength option to restore water clarity quickly and with minimal fuss.\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 Yellow Treat do I use per pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use 5 ounces (one bag or capful) per 10,000 gallons; adjust proportionally for different volumes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is Yellow Treat safe for all pool finishes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The formula contains no staining ingredients and is safe for vinyl, plaster, tile, and fiberglass.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"United Chemical","offers":[{"title":"Default Title","offer_id":54595281355091,"sku":"B001P41TLO","price":49.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/united-chemical-yellow-treat-front-packaging.jpg?v=1786792864","url":"https:\/\/findsworth.co.uk\/products\/united-chemical-yellow-treat-pool-algaecide-2-lb-fast-acting-concentrated-mustard-yellow-algae-killer","provider":"Findsworth","version":"1.0","type":"link"}