kknowlton wrote:
What I don't get is the composting toilets. How do you dispose of the waste from them without violating zoning laws, etc.?
When the composting is complete - the waste is not a bio-hazard substance. All liquid is 'evaporated' - assisted by a heater to increase evaporation.
The resulting material to be composted is about 10 percent of the input material. A properly operating composting toilet can handle the waste of 4 or 5 people and only produce a few pounds of composted material each week.
Here is a link to a unit specifically designed for RV / Marine use -
Evergreen RV / Marine Composting ToiletI've seen a composting toilet installed in an Airstream. A family of three used the unit. The owner showed the state park manager his material to dump. There was no smell. He used sawdust as an additive, and his approx. 5 gallon trash bag of waste was according to him - two weeks of waste from three people.
Made me wonder about running 30 gallons of water and waste through the black tank every 8-10 days. Sometimes we choose less desirable camping spots because it has a sewer connection.
He used a 42 gallon Blue Boy for gray water collection and disposal.