Underwater city sanitation

In a vaguely Medieval setting with some limited magic, how would an underwater city handle sewage?

Sanitation was one of the biggest limiting factors in the growth of human cities, and being under water is going to make the usual ways of removing sewage less feasible.

Some points:

• These cities are built in areas of weak currents.
• Magic exists but isn't all powerful.
• Magically creating currents on a city scale would cost more then the rulers can/want to spend.
• The inhabitants can breathe water and are mostly humanoid.
• Technology is limited to both the time and the limitations of working with extremely limited metal usage.
• This city has defences that would interfere with usual flow of water. There are other, hostile cities. Walls, wall-roofing and other defensive obstructions are present.

posted almost 5 years ago

Overthinks‭

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