{"title":"Algaecides","description":"\u003cp\u003ePrevent and treat algae growth with effective algaecides for all pools. Shop algaecides at Pool Supply 4 Less from brands including HASA, Easy Care, Qualco and Advantis. Popular picks include HASA No Mor Problems Algaecide - Quart Bottle and Easy Care Algatec Super Algaecide and Clarifier - 64 oz. Bottle.\u003c\/p\u003e","products":[{"product_id":"applied-bio-swimtrine-plus-algaecide-32-fl-oz-bottle-4009910","title":"Applied Biochemists Swimtrine Plus Algaecide 32 oz - 4009910","description":"\u003cp\u003eApplied Biochemists Swimtrine Plus 1 qt Bottle AlgaecideSwimtrine Plus Algaecide is a concentrated copper algaecide that quickly kills mustard and green algae and prevents all types of algae from recurring. Add a preventative dose bi-weekly to be free of algae. Triple-chelated formula.\u003c\/p\u003e","brand":"Advantis","offers":[{"title":"Default Title","offer_id":51392416383192,"sku":"4009910","price":39.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/4009910-1.jpg?v=1771013372"},{"product_id":"applied-biochemist-black-algaetrine-algaecide-quart-bottle","title":"Applied Biochemists Black Algaetrine Black Algae Algaecide 1 Qt - 406303A","description":"\u003cp\u003eBlack Algaetrine® Algaecide - Quart Bottle\u003c\/p\u003e\u003cp\u003eThis formulation was specially designed to fight tough black algae. Contains copper and penetrating agents to kill and prevent the growth of even the most deeply-rooted algae cells. It allows for swimming without waiting and is compatible with all pool types. Useful TipsControls black algae and other resistant forms. Swimming can resume immediately after treatment. Compatible with chlorine, bromine and ozone sanitizers\u003c\/p\u003e","brand":"Advantis","offers":[{"title":"Default Title","offer_id":51392416547032,"sku":"406303A","price":52.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/AB406303A.jpg?v=1782338234"},{"product_id":"bio-dex-1qt-aqua-skill-it-algaecide-sk132","title":"Biodex 1qt Aqua Skill-It Algaecide - SK132","description":"\u003cp\u003eBio-Dex Skill-it Swimming Pool \u0026amp; Spa AlgaecideSwimming Pool. This product is compatible with most chemicals normally used in swimming pool maintenance. However, in its concentrated form, this chemical must not come in contact with high concentrations of chlorine or any other oxidizer. DO NOT MIX THIS PRODUCT AND CHLORINE OR ANY OTHER OXIDIZER TOGETHER before adding to the pool. These chemicals must be handled separately. This product was formulated to complement most swimming pool sanitizers. This product is not a stand-alone product. It must be used with either halogen based or non-halogen based pool sanitizers. When using other products as outlined in directions for this product, always follow directions on those products. This product requires no special equipment for treating swimming pool water. The correct use dilution may be added directly to the pool in any spot or added to the water circulation equipment. This product works the best when added by itself directly to pool water by pouring around entire outside perimeter of pool. Do not allow swimming in pool for at least 15 minutes after this product has been applied. Ensure all pool equipment is working properly. Backwash the filter system following manufacturers? directions. Adjust pH between 7.2-7.6. Adjust chlorine residual to 1-3 ppm. In a chlorine treated pool, add stabilizer to establish a minimum level of 40-50 ppm to reduce the degradative effects of sunlight upon the chlorine residual. Check for metals and if present add stain and scale inhibitor to prevent staining of pool surface due to metals. Check chlorine residual and adjust to 1-3 ppm. Maintain sanitizer residual in accordance with label directions found on your sanitizer of choice. Ensure that water quality conditions are maintained for the successful use of the product.\u003cbr\u003e\u003cstrong\u003eTo Determine Pool Capacity\u003c\/strong\u003e\u003cbr\u003eRectangular Pools: Length (times) width (times) average depth (in feet) (times) 7.5 (equals) gal. Round and Oval Pools: Long diameter (times) short diameter (times) average depth (in feet) (times) 5.9 (equals) gal.INITIAL \u003cstrong\u003eApplication for Swimming Pools:\u003c\/strong\u003e1. Backwash the filter thoroughly.2. Vacuum algae debris and thoroughly brush pool.3. Add 12.8 oz. of this product to each 25,000 gal. of water {(5.12 oz. per 10,000 gal.)}.4. Vacuum pool after 24 hours to remove dead algae.5. If algae is still visible repeat dose (steps 3 \u0026amp; 4) as necessary until pool is free of visible algae.6. Allow the filter to run for at least six (6) hours after adding algaecide. During this period, swimmers must not be allowed into the water.7. Once algae are under control, clean filter and return to normal operation.\u003cstrong\u003e MAINTENANCE APPLICATION:\u003c\/strong\u003e Add 6.4 oz. of this product per 50,000 gal. of water {(or equivalent use dilution)} 5-7 days depending on weather and use factors. After each rain of consequence, add 6.4 oz. per 50,000 gal. water. Even when the pool may not be in use for periods of time, algaecide additions must be made since a heavy accumulation of algae growth is difficult to remove. The appropriate amount of this product must be added by pouring a portion of the specified amount into several areas of the pool until the required quantity has been added. Recirculation accomplished by running the filter will assure rapid dispersion of product.\u003c\/p\u003e","brand":"Bio-Dex","offers":[{"title":"Default Title","offer_id":51392496632024,"sku":"SK132","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/SK132.jpg?v=1790718225"},{"product_id":"easy-care-algatec-super-algaecide-and-clarifier-64-oz-bottle","title":"Easy Care Algatec Super Algaecide and Clarifier - 64 oz. Bottle - 10064","description":"\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003cbr\u003eIndustrial strength algaecide. Its powerful cleanup action with or without chlorine makes it the product of choice for fast killing of all types of algae growths. No wait, swim immediately after treatment. Metal Free will notstainWill not foam. Fast results in 4-24hours most algae. Works on Black Algae 7-10 days. Safe for saltwaterpoolsSummer Treatment - Initial Start UpVisible algae 1 Quart per 10,000 gallons. Clean pool start up 1-2 cups per 10,000 gallons.\u003c\/p\u003e","brand":"Easy Care","offers":[{"title":"Default Title","offer_id":51392624328920,"sku":"10064","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/LG-VEN0355-I0000000001-IP001-d.jpg?v=1790804517"},{"product_id":"no-mor-problems-algaecide-quart-bottle","title":"HASA No Mor Problems Algaecide - Quart Bottle - NMP-C12","description":"\u003cp\u003e\u003cstrong\u003ePrevent all types of algae. Works with all types of chlorine, bromine or salt chlorine pools.\u003c\/strong\u003e\u003cbr\u003eEliminate shocking, clarifiersWon’t Stain Pool5 oz. treats 5,000 gallons32 oz. squeeze one quart bottle. The secret to it’s power is in the patented formula; it keeps your pool sanitized working harder, longer – it actually helps release tied-up chlorine so that you won’t have to shock again. This takes a huge load of your filter – thus making it able to work more efficiently. The result is a cleaner clearer pool that doesn't need phosphate removers, clarifiers, shocking or long filter cycles. Your left with a pool that you can spend less time taking care of, and more time enjoying.\u003c\/p\u003e","brand":"HASA","offers":[{"title":"Default Title","offer_id":51393147633880,"sku":"NMP-C12","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/NMP-C12-1.jpg?v=1771026487"},{"product_id":"pool-care-3-month-algaecide-quart-bottle","title":"Pool Care 3 Month Algaecide - Quart Bottle - QPC10122EACH","description":"\u003cp\u003eKills and prevents Blue-Green, Green, Yellow \u0026amp; Black Algae. Long-lasting algae prevention and control for 90 days\/ 3-Month No Algae Guarantee when used according to direction in balanced pool water. Usage: EVERY THREE MONTHS: 16 fl. Oz. per 10,000 gallons of pool water. SEVERE ALGAE TREATMENT: 32 fl. Oz. per 10,000 gallons of pool water.\u003c\/p\u003e","brand":"Pool Care","offers":[{"title":"Default Title","offer_id":51393774059736,"sku":"QPC10122EACH","price":48.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/QPC10122.jpg?v=1790789968"},{"product_id":"pool-care-30-non-foaming-algaecide-quart-bottle","title":"Pool Care 30% Non-Foaming Algaecide - Quart Bottle - QPC50625EACH","description":"\u003cp\u003ePool Care 30% Non-Foaming Algaecide controls algae growth in swimming pool water without causing foam. This product is effective at both high and low pH levels. Pool Care 30% Algaecide is compatible with chlorinating products and other chemicals used to treat swimming pools, and may reduce the amount of those chemicals normally required. However DO NOT mix this product with concentrated dry or liquid chlorinating products. Usage: For treatment of a freshly cleaned and filled pool, add an initial dose of 12 to 24 fl oz. per 10,000 gallons of pool water. On a regular basis, (every 5 to 7 days), use a maintenance dose of 4 to 9 fl. Oz. of Pool Care 30% Algaecide.\u003c\/p\u003e","brand":"Pool Care","offers":[{"title":"Default Title","offer_id":51393774158040,"sku":"QPC50625EACH","price":32.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/QPC50625EACH.jpg?v=1790719695"},{"product_id":"pool-care-60-non-foaming-algaecide-quart-bottle","title":"Pool Care 60% Non-Foaming Algaecide - Quart Bottle - QPC50627EACH","description":"\u003cp\u003ePool Care 60% Non-Foaming Algaecide controls algae growth in swimming pool water without causing foam. This product is effective at both high and low pH levels. Pool Care 60% Algaecide is compatible with chlorinating products and other chemicals used to treat swimming pools, and may reduce the amount of those chemicals normally required. However DO NOT mix this product with concentrated dry or liquid chlorinating products. Usage: For treatment of a freshly cleaned and filled pool, add an initial dose of 6 to 12 fl oz. per 10,000 gallons of pool water. On a regular basis, (every 5 to 7 days), use a maintenance dose of 2 to 9 fl. Oz. of Pool Care 60% Algaecide.\u003c\/p\u003e","brand":"Pool Care","offers":[{"title":"Default Title","offer_id":51393774485720,"sku":"QPC50627EACH","price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/QPC50627EACH.jpg?v=1790719697"},{"product_id":"pool-care-black-algaecide-quart-bottle","title":"Pool Care Black Algaecide - Quart Bottle - QPC50630EACH","description":"\u003cp\u003eBlack Algaecide is a concentrated liquid algaecide for swim pool water. When used as directed, it will kill and prevent the development of green algae, black algae, square D algae, blue-green algae and other swimming pool algae. Usage: Use 5 ounces of Black Algaecide per 10,000 gallons of pool water when first filling the pool for the season. If there is visible algae present in the pool, this dose should be repeated within 48 hours after the killed algae are removed from the pool. For maintenance, use 1 ounces per 10,000 gallons of pool water.\u003c\/p\u003e","brand":"Pool Care","offers":[{"title":"Default Title","offer_id":51393774977240,"sku":"QPC50630EACH","price":39.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/QPC50630EACH-1.jpg?v=1771034606"},{"product_id":"pool-care-spring-start-up-kit-to-10000-gallons","title":"Qualco Pool Care Spring Start Up Kit to 10,000 Gallons - QPC55805","description":"\u003cp\u003eThis kit has what you need to help open your pool in spring. It's for pools up to 10,000 gallons.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOne packet of Chlorine Stabilizer, 1lb.\u003c\/li\u003e\n\u003cli\u003eOne All-In-One X-Tra: Shock and Clarifier In One, 1lb.\u003c\/li\u003e\n\u003cli\u003eOne bottle of Algaecide 75 to prevent algae growth, 1 Quart\u003c\/li\u003e\n\u003cli\u003e2 Packages of Alka Plus PH Increasers, 1lb. each\u003c\/li\u003e\n\u003cli\u003e1 Pool water test kit. Test chlorine and PH\u003c\/li\u003e\n\u003cli\u003eTesting and chemical adjustment instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Qualco","offers":[{"title":"Default Title","offer_id":51393778122968,"sku":"QPC55805","price":38.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/QPC55805.jpg?v=1790719702"},{"product_id":"5-apr","title":"Baleco Maintain 5% Algaecide Winterizer, 1 Gallon Bottle - 5-Apr","description":"\u003cp\u003eThe Baleco Maintain 5% Algaecide Winterizer, 1 Gallon Bottle is part number 5-Apr.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Baleco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 5-Apr\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease confirm the part number matches your existing equipment before ordering.\u003c\/p\u003e","brand":"Baleco","offers":[{"title":"Default Title","offer_id":51670529999064,"sku":"5-Apr","price":6.59,"currency_code":"USD","in_stock":false}]},{"product_id":"408622a","title":"Applied Bio Yellowtrine Algaecide 3 lb Bottle - 408622A","description":"\u003cp\u003eThe Applied Bio Yellowtrine Algaecide 3 lb Bottle is part number 408622A from Advantis.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Advantis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 408622A\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease confirm the part number matches your existing equipment before ordering.\u003c\/p\u003e","brand":"Advantis","offers":[{"title":"Default Title","offer_id":51670560473304,"sku":"408622A","price":40.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/LZA408622A_0.jpg?v=1778537957"},{"product_id":"406103a","title":"Applied Bio Swimtrine Plus Algaecide 32 fl oz Bottle - 4009910 - 406103A","description":"\u003cp\u003eSwimtrine Plus Algaecide is a concentrated copper algaecide that quickly kills mustard and green algae and prevents all types of algae from recurring. Add a preventative dose bi-weekly to be free of algae. Triple-chelated formula contains 9.3% copper.\u003c\/p\u003e","brand":"Advantis","offers":[{"title":"Default Title","offer_id":51670560604376,"sku":"406103A","price":39.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/LZA406103A_0.jpg?v=1778537957"},{"product_id":"407303a","title":"Applied Bio Pooltrine 60 Algaecide 32 fl oz Bottle - 407303A","description":"\u003cp\u003ePooltrine 60 Algaecide, when used regularly, kills current blooms and prevents future growth of most algae types. It does not require a pH adjustment to be effective.\u003c\/p\u003e","brand":"Advantis","offers":[{"title":"Default Title","offer_id":51670560669912,"sku":"407303A","price":33.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/LZA407303A_0.jpg?v=1778537957"},{"product_id":"ap04","title":"Biodex Aqua Pure Algaecide 1 Gallon Bottle - AP04","description":"\u003cp\u003eBIO-DEX® Aqua Pure Algaecide is a swimming pool water treatment. It is used for the control of green, blue-green, mustard (yellow), and other resistant forms of algae and slime control. Treating algae helps maintain a proper pH balance, keeping swimmers comfortable in the pool and protecting pool equipment.\u003c\/p\u003e","brand":"Bio-Dex","offers":[{"title":"Default Title","offer_id":51670571516120,"sku":"AP04","price":128.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/BDXAP04_0.png?v=1778537991"},{"product_id":"ezp05","title":"APi E-Z Pool Concentrated Pool Blend - EZP05","description":"\u003cp\u003eAPI EZP05 5 lb Pail E-Z Pool® Concentrated Pool Blend is a proprietary water care program that combines simplicity with incredible water quality in a once-a-week application. E-Z Pool® contains stable oxidizer, algaecide, clarifier, scale inhibitor, water conditioner and balancers (pH, Total Alkalinity, and Calcium Hardness) to keep swimming pool water clean, clear and trouble free. E-Z Pool® is compatible with chlorine, salt, bromine, UV and ozone, as well as traditional balancers and maintenance chemicals.\u003c\/p\u003e","brand":"APi","offers":[{"title":"Default Title","offer_id":51670575251672,"sku":"EZP05","price":70.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/APIEZP5_0.png?v=1778538004"},{"product_id":"ezp10","title":"APi E-Z Pool Concentrated Pool Blend 10LB - EZP10","description":"\u003cp\u003eAPI EZP10 10 lb Pail E-Z Pool® Concentrated Pool Blend is a proprietary water care program that combines simplicity with incredible water quality in a once-a-week application. E-Z Pool® contains stable oxidizer, algaecide, clarifier, scale inhibitor, water conditioner and balancers (pH, Total Alkalinity, and Calcium Hardness) to keep swimming pool water clean, clear and trouble free. E-Z Pool® is compatible with chlorine, salt, bromine, UV and ozone, as well as traditional balancers and maintenance chemicals.\u003c\/p\u003e","brand":"APi","offers":[{"title":"Default Title","offer_id":51670575546584,"sku":"EZP10","price":119.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/APIEZP10_0.png?v=1778538006"},{"product_id":"ezymp5","title":"APi EzymePro, 5 Gallon Drum - EZYMP5","description":"\u003cp\u003eENZymePRO® EZYMP5 5 gal Commercial Pool Cleaner. EZymePRO is designed as a reducing agent that helps eliminate the constant use of toxic chemicals: algaecides, filter cleaners, clarifiers, pool cleaners and the need to constantly shock water when used as directed. Works in conjunction with chlorine or bromine and alternative sanitation systems.\u003c\/p\u003e","brand":"APi","offers":[{"title":"Default Title","offer_id":51670576169176,"sku":"EZYMP5","price":354.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/APIEZYMP5_0.png?v=1778538003"},{"product_id":"17644cor","title":"BioLab Coral Seas Green Aid Algaecide, 4 lb Bottle - 17644COR","description":"\u003cp\u003eGreen Aid is ideal for the “modern pool.” Many pools are using salt chlorine generators and\/or have a plaster finish. Both of these conditions can create a higher pH in pool water (especially new plaster), which happens to be the ideal condition in which Green Aid works.\u003c\/p\u003e","brand":"BioLab","offers":[{"title":"Default Title","offer_id":51670579839192,"sku":"17644COR","price":38.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/NCH17644COR_0.jpg?v=1778538017"},{"product_id":"17614cor","title":"BioLab Coral Seas Yellow Out Algaecide, 4 lb Bottle - 17614COR","description":"\u003cp\u003eYellow Out® is a chemical breakthrough! 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Amazing cleanup results when used prior to shock treatment with an EPA-Registered chlorinating compound that kills green or mustard algae.\u003c\/p\u003e","brand":"BioLab","offers":[{"title":"Default Title","offer_id":51670579937496,"sku":"17616COR","price":179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/3389\/9224\/files\/17616COR.jpg?v=1784063909"},{"product_id":"17642cor","title":"BioLab Coral Seas Green Aid Algaecide, 2 lb Bottle - 17642COR","description":"\u003cp\u003eGreen Aid is ideal for the “modern pool.” Many pools are using salt chlorine generators and\/or have a plaster finish. 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