RV toilets work similarly to bus toilets.
RV toilets run on very little water and are designed to be placed on vehicles for use while camping or traveling the country. Bus toilets work similarly and are very much like those in RVs. In fact, the two can be swapped easily, with a bus supporting an RV toilet and vice versa.
Internal Cassette
An internal cassette toilet has three parts: a toilet that flushes, a
Portable Toilet
A Porta Potti, or other portable toilet, is not as refined as an internal cassette toilet. It has a water tank and a waste storage tank, but can be stored anywhere on the vehicle and is not permanently mounted in place. A Porta Potti can be removed from the vehicle and placed at an outdoor campsite.
Fun Fact
The first RV toilet was based on a style used by miners. Toilets were attached to mining cars so miners didn't have to go above ground each time nature called. The style was adapted by early the designers of early RVs.
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