Roman Toilets

[66kbm]

So it could possibly imply that if in a rich area of land , good for growing crops, then the waste emptied itself outside a fort/fortress and the locals, or slaves, distributed it amongst the land. Or, if no land was available....it went straight in the river.
Makes sense. I presume that most of these that channelled into rivers had a wooden construction....hence no archaeological evidence is left behind.
Kevin