Composting Toilets ‐ Design 1, The Weekender, Overview.
Design 1 was built from a mixture of materials I found in my garage, some bits and pieces from the local secondhand yard and a few items purchased new. The total cost was about $150 to $200. Design 1 is suitable for use by two or three adults for weekend use.
It would be suitable in situations such as a ranch/farm where the cost of connecting to an existing sewer system would prove expensive. It is also, much much cheaper than a professionally installed in-ground septic tank system. It can be situated where there is no mains power, although in my case this does not apply as I am lucky to have a mains connection.