set-up 10AGA for DSB sump?

[reefnetworth]

i have read many post/threads about them.
how are they set-up? is it simular to a sump with 8" - 10" of sand or...?
i just found a sump with BBL traps & pump chamber i built many tears ago, and im considering using it on my wifes softie 25AGA. all help wil be greatly appreaciated.
thanx, JDM