So I set up my first system today, I got one of those automatic grow cabs. I know you start the light cycles at 18/6, so I've got it on a timer. Growing in hydroton with Supernatural nutes. The sprinkler has two settings, either it rotates like a lawn sprinkler or it sprinkles lightly like a fountain. But it sounds from what you're all saying here like I'm only supposed to run the water every once in a while, and not have the sprinkler on all the time. Is this true? I can't find a setting to make the sprinkler only come on occasionally. It's either running all the time or off.

Also, when you say "flood," does that just mean pouring water through the pellets? It seems like some people are using the word to mean something you do once a week and others are saying you're supposed to do it 5 times a day. What's the difference between flood and flush?