The Renna's max flow rate@0 is 580 L/h
The Eheim (1250) max flow is 1200 L/h
Under the same load conditions (wb and rad), you measured:
Renna: 276 (52% drop)
Eheim: 370 (69% drop)
So you're right (and I sit corrected!) the Eheim is not all that efficient. I keep lurking the Eheim site for pump charts, but they're not up so far.
I am certainly looking forward to seeing your results for the Maxi-jets. I'd like to see the same with Rios.
One thing to keep in mind: we'll have to watch out for leaks (especially with Rios) because these pumps are not designed as booster pumps: the housing may not have been built to handle the extra pressure.
|