Is it even possible to put a septic in yourself? We have a small shed, with running water and power but nothing else. If we wanted to add a toilet, without connecting to our septic system, could we? (long way away from our septic) I know we could use a composting bucket, but wonder about options. It would only have a toilet on it, no gray water. Would only be used a few times a week. So, say the code dept never heard about it....how would you do it?