Assertion: vault toilet | /r/CapableOf | keep all the waste
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text: For example, from simple to more complex: a bucket toilet (honey bucket), a tree bog or arborloo (two simple systems for converting excrement to direct fertiliser for trees), a pit latrine (a deep hole in the ground), a vault toilet (which keeps all the waste underground until it is pumped out), a container-based toilet, a composting toilet (which mixes excreta with carbon-rich materials for faster decomposition), a urine-diverting dry toilet (which keeps urine separate from feces), and incinerating and freezing toilets.