Plants like off time. The roots should dry slightly between on times. A popular number is a continuous 1 on and 4 off. I do 40 seconds on and 7 minutes off. These timers are at least $85.
Opie Yutts Reviewed by Opie Yutts on . drip system timer interval when using a drip system with net cups and a rubbermaid resevoir what is an ideal timer on/off interval for a 130 gph water pump watering 10 3" net cups. :rasta: Rating: 5