150 gal tank build

[Calgarynewtankguy]

So after a fantastic meeting with reefwars this afternoon I came home and turned my 20db tank into a careless whisper!! He set me straight on how to get my overflow performing properly and I was even able to increase my flow. I also took his advise an installed a gate valve on my return. I did have to silicone around the hole in my over flow where my pump return comes out. I performed a power failure test and failed! (Of course I had a container and back up pump ready to go). Pics bellow of new set up