Sprouts-finished

I finished sprouting the mung beans a few days ago and have since eaten most of them between snacks and putting them on Sara's salad. Here's the finished product:



I think they taste like a cross between fresh peas and green beans. I like both, so what I'm saying is that they're tasty. My only concern is scalability and water. To grow sprouts you have to rinse them a couple of times a day. Ideally I'd like to be harvesting sprouts at least every other day if they were to significantly contribute to our green matter, so suppose I have four large mason jars going at any time. A large mason jar of sprouts might take half a pint of water to rinse, so all four would take a quart. Doing this twice a day means using a half gallon of water a day. Seems kind of wasteful.

For a single jar of sprouts I just drink the rinse water, but not sure I'd be able to consistently drink a half gallon of water a day on demand. i suppose the rinse water could be used to water indoor plants (and people :) and in the warmer weather to water plants outdoors (or put through a grey water system...though its far from grey). Another problem is the source of water. I'm using tap water (which works find by the way) which means I'm putting an additional demand on my water source. So ideally it would be nice to use rainwater, but it doesn't rain in the winter here so much as it snows. I'm primarily interested in growing sprouts in the off season.

If you have any ideas feel free to let me know.