I’m purchasing a property which will not perc for a conventional septic system. There are alternative septic systems that are possible, but also I’m wondering, what about an alternative system altogether? Does anyone have experience with handling greywater and waste separately (say composting for waste) in a home with several members?
It massively depends on your local code enforcement officer. If they are a dick, don’t buy the property. If you haven’t met them yet, you will. You didn’t say where you are, so ymmv. If you’re in Maine, I dug my own, town approved primitive wastewater disposal, and could help.