Return pump recommendations for remote sump

[mark]

daplatapus, you're running a DC12000 on a basement sump? What's your head and flow, internal or external?

[daplatapus]

Yup. Right now I've got 2 on my 210. Total of 350 gal or so of water. Pumps are internal (heard they have a bit of a leak issue because the threads aren't exactly like the PVC). probably a total of 12' of vertical head + another 15-20 feet horizontal.

Flow is debatable. The one with the old controller is probably pushing much more than the new one. Just as a bit of a guess I'd say the old one is running 1000 -1200 gph? Where the 2nd generation replacement controller is barely pushing 400-500 I'd say.
I'm really hoping the controllers coming are better. I'f not I guess I'll be re-using my Reelflo

[smokinreefer]

You're running 2 DC12000s in tandem? supplying 2 different return lines?

If quiet enough, maybe I can run one of these under the tank on a closed loop, as well as another for the return from remote sump.

The one under the tank would have to be as close to silent as possible, as the display will be a room divider between the family room and formal dining room.

I am also wanting to keep visible powerheads &/or plumbing in the tank to a bare minimum.

maybe a closed loop and a gyre or 2?

[daplatapus]

Yup, each DC1200 is run independent of the other. I've run 1-1/4" lines from each of them to the tank. One feeds a manifold across the front, the other across the back. Off the 1-1/4" I tee'd off a 3/4" loc line then reduced the 1-1/4" to 1". Off the 1" I tee'd off another 3/4" loc line then reduced it again to 3/4" to a final loc line. So I ended up with 3 - 3/4" loc line's across the front and 3 across the back.
The reduction of the main line keeps back pressure along the line so I get a fairly even pressure across all three loc line's. Otherwise, there would much more pressure at the end and decreasing all the way back.

These pumps are quiet, dead quiet. BUT, I can't speak to their reliability. So far, out of 3 pumps, 1 burned out its controller within a year. But to be fair it was installed incorrectly. Not enough airflow to cool the controller.
The other 2 I've only been running for a month or so. And the new controller that was supposed to fix the old one absolutely sucks for flow but they have admitted issues with my controllers via their serial numbers and they're sending new ones out. So we'll see...