I was wondering if it is possible to insert a pump in the over flow with a close loop system returning water to the main tank. I'm doing to this to increase water flow without using powerheads. I know most people do this with a dry pump outside the tank. I don't have a dry pump, just a wet one which I would like to make use of. Below is a picture of what I want but with the pump inside the overflow. Any suggestions??
picture was copied from http://www.advancedaquarist.com/issu...2003/short.htm
picture was copied from http://www.advancedaquarist.com/issu...2003/short.htm