This year I'm going to try using a 1500 gallon tank for storage/collector. I'll be collecting off a large shed roof and I'll hook up my drip systems to the tank through a regular pump. I'm going to try this in lieu of just using the well that I normally use for the drip irrigation. (The well goes dry in the summer so I haul water. I figure that if I have to haul I can just as easily replenish the rain barrel as the well.) Wish me luck!