Breakdown algae blooms with In The Swim Algaecide 60 Plus 1 qt the best pool algaecide to control all types of algae and even rust stains in well water pools!

Prevents and controls blooms of all types of algae including green, yellow, black, and pink algae
Non-metallic, low-odor polymer-based pool algaecide
60% polyquat active ingredient
Highly recommended for pools using well water to control rust stains
Low odor and pH tolerant
Compatible with various pool sanitizers
Can be used in tandem when super chlorinating
Non-foaming formula
Initial Dosage: 6-11 oz. per 10,000 gallons
Maintenance Dosage: 2-4 oz. per 10,000 gallons

In The Swim - Algaecide 60 Plus, 1 qt.