Tackle stubborn green and mustard algae head-on with Coral Seas Yellow Out Algaecide. This 2-pound treatment represents a breakthrough in algae control, delivering visible results in as little as 24 hours when applied before shocking with an EPA-registered chlorinating product. Formulated to perform across all pool surface types, Yellow Out excels in water with elevated pH (7.8+) and high cyanuric acid levels where traditional treatments often fall short. Free of added metals and fully compatible with salt chlorine generators, it eliminates algae without scrubbing. Apply 2 pounds per 15,000 gallons of pool water and adhere to all label directions for optimal results.

Key Benefits

• Rapid 24-Hour Algae Elimination: Formulated to wipe out green and mustard algae within a single day when applied ahead of shock treatment with an EPA-registered chlorinating product, getting your pool back to swimmable condition fast.
• Thrives in Challenging Water Chemistry: Performs reliably on every pool surface type and remains effective even when pH exceeds 7.8 or cyanuric acid levels are elevated, adapting to a wide range of water conditions.
• Zero Added Metals: The metal-free composition is gentle on pool finishes and fully compatible with salt chlorine generators, delivering a no-scrub algae treatment that won't stain surfaces.
• Straightforward Dosing: Simply apply 2 pounds per 15,000 gallons of pool water according to the label guidelines to achieve clear, algae-free results.

What's Included

• Coral Seas 17612COR Yellow Out

Specifications

• Brand: Coral Seas
• Part Number: 17612COR

Usage Directions

• (a) NEVER pre-mix YELLOW OUT with chlorine (b) NEVER add YELLOW OUT to a bucket or pail (c) NEVER vacuum pool immediately after application (d) NEVER add to skimmer basket or filter suction line! Very strong reaction with chlorine can occur if not mixed in pool. Circulate pool water through filter and, for best results, brush pool well before beginning.
• SHAKE WELL TO BREAK UP THE LUMPS (product lumping in transit is normal). Adjust chemical balance to: pH > 7.8, alkalinity 80 -120 ppm, cyanuric acid 25 - 75 ppm and chlorine level 2 - 2.5 ppm.
• ADD DIRECTLY TO POOL 2 POUNDS YELLOW OUT per 15,000 gallons water. Spread half of it along the perimeter of the pool, starting where the algae are the thickest. Concentrate the rest directly over the problem areas. Never add more than is recommended.
• WAIT 5 MINUTES, THEN ADD DIRECTLY TO POOL 2 pounds powdered chlorine (or equal) per 15,000 gallons water.
• CIRCULATE POOL WATER with filtration continuously for 24 hours using only the main drain if possible. Repeat step 4, adding additional chlorine after 12 and 24 hours.
• Return equipment and chemical balance to normal after clean up.

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