I had my dishwasher removed because I didn't have the patience to fill it, I kept running out of dishes and silverware before it was full, and without it there, the little 'cave' is the ideal place to tether train a puppy for housebreaking.

Greywater isn't technically allowed BY LAW in most places (CA is starting to do it), but there doesn't seem to really be any reason NOT to do it if you can arrange it. And many towns are of the 'don't ask/don't tell' opinion. Many existing laws (for lots of things) are on the books so they can have a way to stop you if you go overboard. For instance, city law may say you can have a maximum of four dogs. You have five, they're well-mannered, quiet, you keep them confined and there's no odor. No one is going to fuss about that, so there's no problem. However, if people move in next door with five loud, obnoxious, aggressive dogs that are allowed to run and terrorize the neighborhood, there's a law that can slap them down.

Also, a good thing to have when you have a greywater setup is a handy valve that can switch where the water goes if it contains something you don't want going directly into the soil.

It's even better if you have your discharge area surrounded with plants that will feed on the nutrients in the water.

Sue