Quote:
Originally posted by dream caster
look in that thread; and see how easily Volenti passed from 660 l/h in his watercircuit including block and everything to 1120 l/hr (  but he also gained some complications . . . )
. . . probably Eheims also switch their spinning direction . . . (not only cheap pumps)
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Yea, I'm almost certain that
all pumps that have a centre outlet are bi-directional, after all, why would a manufacturer deliberatly cripple their pumps performance with a center outlet if their pump had a fixed rotation?
The effect of the mod on the pumps "curve" is interesting, even though in the particular test environment it almost doubled flow, it didn't increase max head by all that much (only by 15% or so) max head governed more by motor torque/speed and impeller design?
anyway I have some more work to do on this pump (adding the second outlet) I'll post back with results.