Wow can I come live with you? :P
Yes it is very rewarding growing your own food! You also know exactly where it has been.

It sounds like you have a lot of planning to do, but once you get it done, sounds like it could be a convenient and efficient way to water.

I have noticed, if it takes too long to water a section, i.e the flow of water is too low, then the water will be be absorbed very deep, which is not a bad thing, but it takes a long time for the water to spread horizontally across the soil. So watch out for that!