90-Day Algaecide 1 qt Bottle
Product Overview
A proven choice for maintaining a long-term algae defense without the foaming issues common in lower-grade treatments.
In our experience, Regal 90-Day Algaecide is what pool techs reach for when they need a reliable, long-lasting residual. This 1 QUART (946 ml) bottle contains a 10% Copper Triethanolamine complex* that stays active in the water for up to three months, effectively preventing green, yellow, and black algae. Unlike standard polyquats, this non-foaming formula is specifically designed to avoid staining while providing a consistent layer of protection.
Benefits & What Makes It Different
10% Copper Triethanolamine complex*
This chelated copper formula provides a 90-day residual that kills and prevents all major algae types without staining pool surfaces.
Non-Foaming Formula
Unlike many retail algaecides, this Regal treatment won't cause unsightly suds in your pool or spa, making it ideal for pools with water features.
1 QUART (946 ml) Efficiency
One bottle provides a concentrated dose that simplifies your maintenance schedule by reducing the need for weekly algaecide additions.
Product Details
Copper Triethanolamine complex* 10%
16 fl oz per 10,000 gallons every 90 days
Compatibility
- Safe for all pool surfaces including vinyl and plaster
- Compatible with chlorine, bromine, and salt-water systems
- Do not mix directly with other chemicals in the skimmer
When To Use This
Pro Tip
In regions with high evaporation and hard water, like the Southwest, keep an eye on your total dissolved solids (TDS); while this product is non-staining, maintaining proper pH is still essential to keep minerals in solution.
Common Questions & Instructions
How much Regal 90-Day Algaecide do I need for my pool?
For a standard application, use 16 fluid ounces per 10,000 gallons of pool water every three months to maintain an effective algae preventative.
Will this algaecide stain my pool liner or plaster?
Because it uses a Copper Triethanolamine complex*, the copper is chelated, meaning it stays in suspension and is much less likely to cause staining compared to standard copper sulfate.
Can I swim immediately after adding this algaecide?
We recommend waiting at least 15 minutes for the product to circulate through the filtration system before allowing swimmers back into the water.
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.
