Pool Algaecides
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Pool Algaecides – Control Green, Yellow & Black Algae
Algae can turn a crystal-clear pool into a cloudy, slippery mess. Whether you're battling a current outbreak or preventing future growth, our selection of pool algaecides offers effective solutions for all pool types and algae strains.
Why Use an Algaecide?
Algaecides are chemical treatments designed to kill existing algae and prevent new blooms. They work in conjunction with sanitizers like chlorine to keep your water looking and feeling its best—especially during peak heat, rain, or heavy usage periods.
- Green Algae Treatments: Fast-acting formulas to clear up the most common type of pool algae
- Yellow (Mustard) Algae Control: Specialized products for stubborn, chlorine-resistant growths
- Black Algae Killers: Penetrating treatments to break down tough black algae on walls and steps
- Preventative Algaecides: Weekly-use solutions that stop growth before it starts
Whether you’re dealing with a sudden bloom or want peace of mind through the summer, our team can help you choose the right product and dosage for your pool.
Shop pool algaecides today to eliminate algae and keep your pool swim-ready all season long.
Frequently Asked Questions
When should I use algaecide in my pool?
Use algaecide at pool opening, weekly as a preventative, and anytime algae appears in your water. It’s especially useful after rain, heatwaves, or heavy usage.
Can I swim after adding algaecide?
Most algaecides allow swimming after a short wait (15–30 minutes), but always check the product label for specific safety instructions.
Do I still need chlorine if I use algaecide?
Yes. Algaecide is a support chemical, not a replacement for chlorine. It enhances algae control, especially when chlorine is weakened by heat or contaminants.
What’s the difference between green, yellow, and black algae?
Green algae is common and fast-growing. Yellow algae is more stubborn and resistant. Black algae has deep roots and grows in cracks—making it the hardest to treat.