Need directions on how to hook up. Do I direct connect to the overflow box or does it just suck up from the sump? Then does it just empty into the first chamber and over flow into the refuguim then over and under the next 3baffles?.... Seems like it should be simple but this is my first set up and I bought it used. Guess I should have asked few more questions but got distracted by the tank he had?.. Thanks in advance for any help your can offer


