Product Overview

Keep algae from taking over your pool with Pool Season Halt 60, a concentrated liquid algaecide for prevention and control. Its 60% polyquat formula targets green, black, and mustard algae without a metal-based active ingredient.

The non-foaming formula suits pools with moving water, including pools with attached spas and water features. Use it for regular maintenance or as part of a seasonal closing routine, while continuing your normal sanitation, filtration, and water-testing program.

Key Features

Concentrated formula: The liquid contains 60% polyquat active ingredient for measured applications based on pool volume and treatment needs.

Non-metallic: Algae control without a metal-based active ingredient.

Non-foaming: Suitable for pools with attached spas, spillovers, and water features.

Saltwater compatible: Use in pools with salt chlorine generators according to label directions.

Multiple treatment uses: The label gives directions for visible algae, freshly cleaned pools, routine maintenance, and winter algae control.

One-quart bottle: Includes 1 qt / 32 fl oz / 946 mL of liquid concentrate.

Specifications

Warranty & Compatibility

For maintenance, the label specifies additions every five to seven days after the initial treatment. Heavy algae growth requires cleaning before treatment; pool, spa, and hot tub quantities differ, so follow the directions for your application and water volume.

Wear chemical-resistant gloves, avoid contact with skin, eyes, and clothing, and wash thoroughly after handling. Never mix the concentrate directly with liquid or dry chlorine products. Store tightly closed in a cool, dry, well-ventilated area, away from heat, strong oxidizers, and children.

All chemical sales are final, including unopened bottles, so confirm the product and quantity before ordering.