Best approach to configuring a wavemaker?

[whitey436]

What is the best approach to use when configuring a wavemaker? I have my return on one corner and my overflow on the other. I have a 4 port Ocean Motion Wavemaker that I am going to use. I would like to place and configure 4 powerheads to give the best benefit for the tank.
The tank is a 75 gallon display and I have a 40 gallon refugium.

Any advice that can be provided would be appreciated.

Thanks,
Keith