Originally Posted by jharrison
It doesn't need any type of pump, etc. You would just make the reservoir low and wide so the whole assembly sits below the evaporator and let Isaac Newton run the show. ...
It might be awkward to mount it low enough for that to work. You'd also need to filter the dirt (from air) and mold out of the water, so would have one more filter to change.
The washer is needed mainly in winter. "Evaporator runoff" happens mainly in warm weather.