So do you have a septic and composting toilet? I'm building a work shop but intend on converting the two sections 12x 24 and 8x 30 (its in an L shape) into tiny homes one day and even converting the shed (10x12) into a room. I thought I should get a septic design so I would know where one would have to go before I start on the workshop, but I really thought that a composting toilet would save water and be a better environmental path as well as solar instead of PEC (electrical company out here in Dripping Springs TX). I had no idea that kitchen water is considered black water. My plumbing initially will be very minimal.
I'm just starting, I have to get water and electricity out to the lot first. But this post did help, thanks!