Mobile homes must have specially designed toilets. These toilets must meet the special needs of the mobile home, including spatial constraints, a limited supply of running water and lack of connection to septic systems. Different types of mobile home toilets tackle these problems by alternate means, including self-contained storage and the use of gravitational forces to flush waste. Types of mobile home toilets include cassette and composting.
Gravity toilets use gravitational force and minimal amounts of running water to flush waste. These resemble standard home toilets without the tank. Most gravity toilets are low units that connect to mobile home water systems at the back. A foot-operated flush opens a valve door at the bottom of the toilet bulb, creating suction. This suction, coupled with a minimal release of water, flushes waste into the mobile home's septic system through a pipe leading from the bottom of the toilet.
Composting toilets are self-contained units that can be placed in mobile homes without being hooked up to septic or water tanks. Waste stays in a tank connected to the toilet bowl and is mixed with organic materials until full. The waste is then removed from the toilet and can be used to fertilise a garden or safely disposed of in approved settings. Composting toilets allow mobile home users to preserve water for showering or cleaning though they can be the source of unwelcome odours.
Cassette toilets combine aspects of composting and gravity toilets. Like gravity toilets, they connect to the main water supply of a mobile home. This water is used to flush waste from the bowl. Like composting toilets, cassette toilets have self-contained storage capacity. Thus, when waste is flushed from the bowl, it enters a tank. Tanks have varying capacities that are measured in gallons. The size of the tank will affect the overall size of the unit and should be purchased commensurate to the size of the mobile home for which it is intended.