Application rates: 250-500 gallons 10oz initial treatment 3 oz for the next four weeks 3 oz monthly for maintenance 501-1000 gallons 14oz initial treatment 5 oz for the next four weeks 5 oz monthly for maintenance 1001-1500 gallons 18oz initial treatment 6 oz for the next four weeks 6 oz monthly for maintenance 1501-2500 gallons 24oz initial treatment 8 oz for the next four weeks 8 oz monthly for maintenance 2501-3500 gallons 28oz initial treatment 10 oz for the next four weeks 10 oz monthly for maintenance 3501-5000 gallons 32oz initial treatment 12 oz for the next four weeks 12oz monthly for maintenance 5001-7500 gallons 40oz initial treatment 16 oz for the next four weeks 16oz monthly for maintenance 7501-10000 gallons 48oz initial treatment 20 oz for the next four weeks 20oz monthly for maintenance