What was the head height of both filters during the test. Actual measurments...Quote:
FLOW RATE
Manufactuers rate their filters by the maximum produced by the pump under ideal conditions without media and things like hoses which isn'tvery helpful in the real world. Most cannisters seem to get less then 50% of their rated flow capacity when used in the real world but both these filters did better then that.
The Fluval showed a flowrate of 1991 litres per hour when full of media and connected which is about 57% of its rated pump capacity of 3500 l/ph but the Eheim did even better giving 1207 litres per hour out of its possible 1700 l/ph for a amazing 71% !
This still gives the Fluval a nearly 800 litres per hour flowrate advantage when used in real life situations but filtration is more then flow alone its also about capacity.
