A good time to start with is 15 on 60 off when the lights are off. With lights on you can run them full on.

The later into flowering (last 3-weeks) your plant is you can let it on 24/7 lights on & off.
Zandor Reviewed by Zandor 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