Question for anyone experienced with dwc. Obvisouly one cant always be around to tend ones garden 24 hours a day/7 days a week. What happens if the power goes out at your place? Obviously the plants could probably survive without lights for a while. I understand it may cause problems but wouldnt be a nail in the coffin I wouldnt think. What about the air stones though and the roots?? Without the air in the water wont this kill the plants quickly?? I suppose this is an advantage to a drip system or ebb & flow over dwc. dwc diy is obviously cheap and effective though. What to do... Sorry if that is a dumb question. I'm just the type of person that this thing always happens to and I've learned in my life to hope for the best but always prepare for the worst. As is I'm already planning two different pumps for each res in case one should have a problem. That brings me to another question. Is there such a thing as too much air?? For example would it be advantagous to line the entire bottom of the res with air stones operating off a mutiple outlet commercial grade air pump? Or would that be a bad thing or not make a difference worth the extra cost?? Thanks for all the help anyone can provide.