That sounds like a great idea, if you can find soap that doesn't kill the lawn!
Yay, I finished the homework assignment of doom!
Right now we're dumping it into a big trashcan and it fills that trashcan UP twice, once with wash water, once with rinse water. On the small cycle! Between, Steve hauls it out with a bucket into the yard. Just to ease the load on the septic for right now.
But really, that is a massive amount of water for just slightly soiled clothes that can be used for other purposes...
Can you take a nap now?