
BAQUACIL® Algicide
Product Overview
What pool techs reach for when they need a stable, non-foaming preventative that works across Baquacil, chlorine, and bromine systems.
BAQUACIL® Algicide is a reliable, highly concentrated formula designed to prevent green, black, and mustard algae. Packaged in a convenient 1 Quart bottle (SKU 2340290), this product features a dual-action quaternary ammonium compound blend (49.8%, 0.2% active ingredients) that remains completely stable under intense sunlight and temperature fluctuations. It is a proven choice for maintaining a clean, clear, and algae-free pool without affecting your pH, alkalinity, or calcium hardness.
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Benefits & What Makes It Different
Broad-Spectrum Prevention
Effectively prevents green, black, and mustard algae from taking hold in your pool water.
Multi-System Compatibility
Formulated for Baquacil-treated pools, but also fully compatible with chlorine and bromine systems.
Non-Foaming & Highly Stable
Unlike low-grade alternatives, this formula won't cause unsightly foam and is unaffected by pH fluctuations or sunlight.
Product Details
n-Alkyl (60% C14, 30% C16, 5% C12 and 5% C18) dimethyl benzyl ammonium chloride, n-Dialkyl (60% C14, 30% C16, 5% C12, and 5% C18) methyl benzyl ammonium chloride (49.8%, 0.2%)
Initial treatment: 5.25 fl oz per 10,000 gallons. Weekly maintenance: 1.25 fl oz per 10,000 gallons.
Compatibility
- Compatible with Baquacil sanitizer systems
- Compatible with chlorine and bromine pool systems
- Do not mix directly with other pool chemicals in their concentrated form
When To Use This
Pro Tip
In hot southern climates, high temperatures and heavy bather loads can deplete your primary sanitizer rapidly. Adding this non-foaming algaecide weekly provides a reliable secondary line of defense, ensuring your pool stays clear even if your chlorine or Baquacil levels temporarily dip.
Common Questions & Instructions
How do I dose BAQUACIL Algicide for my pool?
For an initial treatment, add 5.25 fl oz per 10,000 gallons of pool water directly with the pump running. For weekly maintenance to keep your pool clean, clear, and algae-free with trusted BAQUACIL® Algicide, use 1.25 fl oz per 10,000 gallons.
Will this algaecide affect my pool's chemical balance?
No, this formula does not add cyanuric acid (CYA), nor does it affect your calcium hardness, total alkalinity, or pH levels. It allows you to maintain your ideal water ranges: free chlorine 1–3 ppm, pH 7.2–7.6, total alkalinity 80–120 ppm, calcium hardness 200–400 ppm, cyanuric acid 30–50 ppm, and salt 2700–3400 ppm without interference.
How long do I need to wait to swim after adding BAQUACIL Algicide?
You only need to wait 15 minutes after pouring the algaecide directly into the pool water with the filtration pump running before swimmers can safely reenter the pool.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



