Advice on Weir Height for Installation

[DaBrewzer]

Hello All, Trying to figure out what the height of the Weir should be in relation to the top of the tank. I have an acrylic 180 gallon tank, 72x24x24, and an Easopps 200 Sump. The overflow is a Synergy V3 Shadow Overflow. How close to the top of the tank would be best for the weir? Thanks in advance

 

[MarineandReef Jaron]

For the External Boxes, I normally mount them as close to the surface as I can without cutting into the bracing. It just looks better and the water level should never be above the top of the internal portion of the box so as long as the internal box is below the trim you shouldn't have a flood.

 

[DaBrewzer]

For the External Boxes, I normally mount them as close to the surface as I can without cutting into the bracing. It just looks better and the water level should never be above the top of the internal portion of the box so as long as the internal box is below the trim you shouldn't have a flood.

Thank you very much!