I have a basement sump that drives two tanks, one upstairs in the kitchen and another across a wall in the basement. I use a single Sedra KSP 20000 pump (surprisingly high pressure with 22' head) to return to both tanks. You can also get a Sedra KSP 30000 which is even more powerful. With T manifolds the Sedra also drives my chiller, bio pellet reactor and carbon/gfo reactors. I have simple pvc ball valves to adjust the various flows. More than adequate flow for everything. The only other pump in my sump is for the skimmer. Very simple set up, but very effective. And not too expensive.
I also have the upstairs tank in the kitchen, which is a little different. But it has worked out very well.
Have a look at my journal link below.
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