george,i made a slight mistake on feeding.1st feeding 8:30 4 sec.,11:30 5 sec.,3:30 4 sec.not sure how much feed per second,i'm going threw about 75-80 pounds per month.i also hand feed in a different location every day at lunch time,i would guess i'm throwing about 1 1/2 pounds in this spot.my lake is 4 3/4 acres in size.i bought this feeder from greg grimes and he told me to feed 5-6 times a day in the spring and fall and 3-4 times a day in summer.i left my feeder on all winter,throwing 4 seconds at 1:00 in the evening.