[tang daddy]

The frag tank under your display could just have some water T'off from the return pump and the drain could tie in to the emergency drain to save from adding another line to the sump.

This is quite a substantial project as the run is over 25' or more from the basement to the display. I think you will have a hard time finding a return pump that can do that and still keep a higher gph unless you have a secondary pump inline to the supply boosting it up half way on the line....make sense?