Some feedback just in of a sighting of a we-pee separator in Portugal (in an "Adubo de compostagem") ... Here it has been used in a waterless composting toilet on a remote mountainous site in Portugal. Composting toilets are the ideal sanitation solution for off-grid locations without electricity, running water or sewage systems. Separating the urine from the solids with a urine diverter is the key to producing great useable compost from the system and eliminating smells. Permaculture projects in Portugal are popular with the great growing climate, and dry toilet systems go hand-in-hand with natural, ecologically conscious principles.