Lr ,sumps,pumps what to do?

[mr_alberta]

I think it would be a better idea to have only a few pound of liverock and fill the rest with base rock. You save much more money that way.

As for the sump, you should try to get as large of a sump as possible to physically fit where you want it.

To plumb the tank, just use the schedule 40 PVC at home depot.