Has anyone tried diverting their grey water into swales? I live in a fairly arid climate in which rainfall alone wont support fruit trees... well usually. I have a goal to aquire 2 or 3 acres with a gentle slope facing north to north east. Zone 1 would be at the top of the rise. I've looked into the idea of creating depressions around growing areas to make the most out of infrequent, heavy rain events which seems pretty rational but I've always liked the idea of the frequently producing swale too. Just doesn't seem effective in a climate that is dry for most of the year though. Diverting greywater might be the way to do it. Obviously it would have to be staged so as to distribute the water fairly evenly but there are other concern such as water temperature (from showers and baths) as well as long term nutrient load and chemical balance issues from soaps and so on. Does this idea sound plausible to anyone and what are people's experience with the couple of potential issues pointed out?