I just bought a automatic watering timer that I hope will help me out when I am not home and at work. Only thing I need to know is how long do I need to leave it running for so I don't waste my water and have a outrageous water bill and on the flip side of it I don't want to dry them out also. I have built 2 4x8x10 boxes and will have just over 16 peppers to water. I have 3 sprinkler heads that spray in a 360 degree constant pattern. Any help with how long to keep it running and what time is the best time to water is greatly appreciated.