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This is the first dosage and will provide a significant boost to the system. Double the maintenance dose determined below. Many water systems will not need treatment during the cold winter months. Anticipate doing a seeding dosage once a year in early spring.
1 oz. per 1000 gallons per week during months when the water temperature is above 50o F (10o C). Microorganisms are not significantly active when temperatures are under 50o F.
1 oz. per 1000 gallons per week is the average dosage rate for most ornamental systems. Increase dosage by 25% for systems that are in poor shape.
Larger systems should use 3 oz. per 20,000 gallons.