Coral Seas 17614COR Yellow Out™ Algaecide – 4 lb Bottle

The Coral Seas 17614COR (Yellow Out™) is a powerful pool treatment designed to eliminate stubborn algae infestations — especially mustard (yellow) and green algae — and restore water clarity quickly. It works especially well when used prior to shock treatment to super-charge chlorine effectiveness and clean up heavy algae blooms.

Key Features

• Targets and destroys tough algae — including mustard/yellow and green varieties.
• Formulated without metals — safe for all pool surfaces (vinyl, plaster, fiberglass, etc.).
• Effective even in salt-chlorine pools or pools with high cyanuric acid levels.
• Compatible with standard chlorine shock treatments — enhances sanitizer performance for faster clean-ups.
• Fast-acting results — visible algae clearance often within 24 hours when used correctly.

Specifications

• Brand: Coral Seas
• Part Number: 17614COR
• Container: 4 lb bottle
• Product Type: Pool algaecide / shock-enhancing treatment
• Use Case: Heavy algae clean-ups, pool reopenings, seasonal shock treatments

Recommended Use & Dosage

• Tip water chemistry so flush out before adding.
• Use approximately 2 lb of Yellow Out per 15,000 gallons of pool water.
• Add Yellow Out directly to the pool (never premix with chlorine or pour into skimmer or suction lines). Distribute it evenly around the pool perimeter.
• Wait 5 minutes after adding, then add the chlorine shock treatment as directed by your sanitizer instructions.
• Run your pool filter continuously for at least 24 hours after treatment for best results.

When to Use

Use 17614COR when dealing with persistent algae outbreaks (especially mustard-yellow or green algae), before shocking after a heavy swim load, at pool opening season, or when water has turned cloudy despite normal maintenance. It’s also useful for preventative maintenance if algae growth tends to reoccur quickly in your pool environment.

Maintenance & Safety Tips

• Do not mix Yellow Out with chlorine or other chemicals before adding — always add directly to pool water.
• Ensure adequate circulation — run the pump and filter continuously during treatment and for 24 hours after.
• Use protective gloves and eyewear when handling the powder — treat like any chemical shock product.
• After the water clears, test and balance pool chemistry (pH, alkalinity, chlorine) before allowing swimmers back in.