The most important advantages of self-contained units are:
• Being waterless, they need no plumbing or water connection. This means they are quick and easy to install since the only task is to assemble the vent stack which comes with the unit.
• They are more economical than central units because there is no separate toilet.
• They are more suited to winter operations than central units, because it is often easier to keep the bathroom warm.
• Most units normally evaporate all liquids in seasonal operation. Since the whole waste stream is recycled, approvals are not normally required.
• Cleaning is simple. All self-contained units have a bowl liner beneath the seat, which can be removed for cleaning whenever necessary.
• High quality, high gloss fiberglass finish is perfect for indoor installations.