The "porta pottie" is a proprietary, compact toilet device that is usually installed in motor homes and boats. However, there are many other brands and models based on the same concept, as pictured here. Since it is self-contained and compact it can be set up, used anywhere, put back into storage when not in use. The porta pottie is a great space saver. It has two sections, the bottom one for holding waste while the top portion is for the seat
and the water tank
, both being detachable. This is the most popular type of portable toilet used by tent and camper-trailer based campers as it is not an installed type, and is truely portable. The use of the correct environmentally friendly fluid in the waste storage tank will enable you to bury the "slurry" after it has broken down (bottom cassette) so these can be used in bush camping situations where no dump stations are available.
These toilets are readily available from major camping stores from around $100 - $300. Different manufacturers offer different sizes of waste storage cassette and physical dimensions of the unit also differ from model to model so you can shop
around to find the one that best fits your needs. As you'll need to find a place to store this toilet when you're travelling, yet perhaps have it in a handy location for roadside
stops, you may need to consider size and fit in your buying considerations.