[RickM]

I can't speak on wells from personal experience but friends who have them typically have some type of filter/softner (usually salt based) system. Also, consider what happens if you lose power. A generator would be required to get you up and running again but consider start-up amperage requirements.

I have had septic before and experienced no problems. Different localities have different guidlines to build these under so confiuration may be limited. I would recommend clothes washer waste water go to a seperate system. Technology using plastic tanks seems good but I wonder about climate extremes affecting the materials. I now have city sewer and must pay a quarterly fee...forever.