I would go with this. This is my plan for my future large 225+gallon. It is much cleaner than the large overflow chambers that tank companies typically install.The Marine Depot HOB overflow was like $75. For $93 I can get a drilled in overflow box:
Eclipse S Overflow Box - EshoppsFree Shipping on Everything, Rewards, Free Swag, Price Matching & Free Returns.www.saltwateraquarium.com
This design does not depend on Siphon as it is drilled into the back of the tank.. Im good with tools. I can easily drill the tank from the back.
This overflow is a better idea than a siphon, right?