These are waterless, large tank systems with removable containers that are taken to a seperate area for composting and an empty tank installed back in the compost toilet..
House structure modification will usually be required to instal in an existing house.
These systems usually are built on common industrial containers or wheelie bin type moveable containers, so the cost is relatively low and they are easy to put together.
VIETNAMESE DOUBLE VAULT COMPOSTER
Manufacturer – SUSTAINABLE SANITATION ALLIANCE
Country – VIETNAM
System webpage – www.susana.org/en/knowledge-hub/resources-and-publications/library/details/396
System Type – Dry – Tank – Batch
WHEELIE BIN COMPOSTING TOILET
Designer – Samuel Alexander
Country – NEW ZEALAND
System webpage – www./permaculturenews.org/2014/07/30/composting-toilets-made-wheelie-bins/
System Type – Dry – Tank – Batch