At my camp, for the last 4 years I’ve been following Joe Jenkins’ model from the Humanure Handbook: http://humanurehandbook.com/ Bullet points: 5 gallon bucket, removable plastic seat Line bucket with compostable bag Add a cpl scoops of loam Do your business – only organic products go in bucket (TP ok, tampons no) Fully cover waste with loam when bucket is full dump on compost heap cover with green material and straw when heap is complete, cap for one year (2 for compromised systems) Remove compost and use for fruit trees