Algaecide Concentrate 1qt Bottle
Product Overview
What pool techs reach for when preventing stubborn algae growth without introducing copper staining or altering water balance.
Regal Algaecide Concentrate comes in a concentrated 1 QUART bottle featuring 50% Alkyl (50%C14, 40%C12, 10%C16) dimethyl benzyl ammonium chloride. In our experience, this non-metallic quat algaecide reliably handles routine algae prevention and treatment without adding cyanuric acid or metals that cause pool surface staining.
Customer Reviews
No reviews yet — bought this one? You'd be first.
Benefits & What Makes It Different
50% Active Concentration
Formulated with 50% Alkyl (50%C14, 40%C12, 10%C16) dimethyl benzyl ammonium chloride to control green, yellow, and black algae growth.
Non-Staining Quat Formula
Contains zero copper, eliminating the risk of liner or plaster staining while keeping calcium hardness and total alkalinity unchanged.
Surface Tension Reduction
Naturally reduces pool surface water tension, which aids in algae control and helps deter visiting ducks and surface insects.
Product Details
Alkyl (50%C14, 40%C12, 10%C16) dimethyl benzyl ammonium chloride 50%
Initial: 2.6–5.2 fl oz per 10,000 gal; Maintenance: 1.3 fl oz per 10,000 gal weekly
Compatibility
- Compatible with chlorine, bromine, salt chlorination, and mineral systems
- Do not premix directly with concentrated chlorine or shock; add separately with the pump running
When To Use This
Pro Tip
Pour this 1 QUART concentrate directly around the pool perimeter near return jets. In hot southern climates where intense UV and warm water accelerate algae reproduction, pair weekly maintenance doses with free chlorine maintained at 1–3 ppm for maximum prevention.
Common Questions & Instructions
How much Regal Algaecide Concentrate should I add per 10,000 gallons?
For initial treatment on visible algae, add 2.6 to 5.2 fluid ounces per 10,000 gallons of pool water. For routine weekly maintenance, add 1.3 fluid ounces per 10,000 gallons while the circulation pump is running.
Does this 1 QUART quat algaecide raise stabilizer or calcium levels?
No. Unlike trichlor shocks or copper products, this 50% quat algaecide contains no cyanuric acid, calcium, or heavy metals, maintaining your target pH 7.2–7.6 and total alkalinity 80–120 ppm without side effects.
How long after adding Regal Algaecide Concentrate can you swim?
We recommend waiting at least 15 to 30 minutes after application with the filtration system circulating, ensuring free chlorine is within the standard 1–3 ppm range before swimming.
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.
