Elevator
Drainage system

Drainage system works by creating a sump to collect the condensed water and using a pump to dispose of it through a drainage system.

It is an efficient method, but it comes at a heavy price because of the cost of building the sump. Moreover, maintaining the pump to make sure it operates is very expensive. Furthermore, the pipes used for drainage would look ugly on the exterior. This system also cannot be implemented on a built project.
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