I was on a uk forum earlier and some guy wanted his display tank low to the ground for some reason and was asking about the pros and cons of an overhead sump. Does anybody out there, for whatever reason, do it this way? It seems a bit unusual to me but i'm relatively new to sumps so what do i know. I once thought about the benefits of a side sump at waist height built into a cabinet for ease of maintainance. A nice advantage of a side sump would be your head loss on your return pump would be reduced greatly. Or is the below sump the best and only way to run a sump set up?