Sump size help needed for a 240 gallon

[jsweir]

Picked up a 240 6' x 2' x 30". Came with a roughly 30 gallon 36" sump. I'm thinking that is way undersized. What is a good size (I know bigger is better) looking for specific designs/brands that will work in a 60" L x 20" W x 25" H and keep in mind that is maxed out, need some room for other stuff and to get in the sump etc. Aquarium has two 1 1/2" drains and two 1" return bulkheads.

 

[SteveG_inDC]

I would sell the sump and scan ads for a used tank of your preferred dimensions to put under the stand. I bought a similar sized DT and found a used reef-ready 100 gallon (4' long) acrylic tank that I converted to a sump with some acrylic pieces and cement.