and one of my exes did them too. And I see no real reason you couldn't use the water twice, then use it elsewhere. Like as flush water. When I pump melt water out of my ice box that's where that goes. The ice box has no drain

I've done them here at home. Haven't thought about it in a good while, but seems like a good idea.

Unlike some others here, I have no frig, and only use the ice box for drinks- RARELY have any food in there, so fresh sprouts would be nice.