Hello fellow fish keepers . . . I'm new to the BIG TANK world, and I'm taking on (for me) a monster of a project. Anyway I need to build and design a sump that will flow anywhere from 1200gph to 2400gph. I know it is a wide range but I'm not sure just what I will need.
i built a sump for a 265 gallon(1200gph)i used a 75 gallon rubbermaid tube,the three draw plastic storage container from walmart(100 pot scrubbies in the two bottom drawers and filter pads in the top drawer)a 1200 gph overflow and a mag-drive 12 and it works like a charm not too pretty but works perfectly,others on here have some diy sumps also i am sure some one will share theirs,hrer is a some pic of mine.
i am sure you can change the over flow and pump size to make it 2400 if necessary,
My sump on my 125 is a 29g tank and flows 1400gph.
Since you will probably be using a much larger tank to build on just spread everything out to meet your sumps size.
Basically for a 55g (12" w) or 75g (18" w) sump just leave your self 1.5-2'' gaps between the baffles. The floor baffles and btween each other. And you will have no problems running 2400gph thru it.
Here is my little drawing/plan for reference
And when deciding on pump size just make sure the pumps gph will turn your tank over 4-6 times per hour. And you will be all set.
