 Let the water run for a period of time. Then you go back and measure how much water you collected in those cans. And if it ran for an hour and you collected a quarter inch of water, all right, then this thing puts out roughly a quarter inch of water per hour. So you have some idea then of how much water is out there. All righty. Some good things to know about this. We're going to pause for a moment. We'll be back. We have a lawnmower question for you.