The sump is a standard 75g tank with a skimmer section on the left, fuge in the middle and then return.
There is a | over | under | over baffle system between the skimmer and fuge. The under baffle broke in the middle.
Followed by the return baffles which are over | under.
The center brace snapped, but can be glued. I tested the sump at full volume and noticed 0 bowing. Given the baffle structure it runs approximately half or so about 30-40 gallons total volume.