I run an Equine Assisted Growth and Learning facility in Southern California. Our current project is building a compostable toilet out of reclaimed pallets. We are looking to turn all waste into something useful and starting with the restroom at the horse facilities we thought was key. I've researched how it works but have some concerns due to pathogens and such in human waste. Would we be better off using home made horse manure compost and worm castings for our organic vegetable garden and the composted human waste for say flowers, trees and shrubs? Any info or input is greatly appreciated! Thanks!