Quote:
Originally posted by Blackeagle
One thing I found of interest was the flow rate differance between the Cascade and the White Water in Copyman's testing.
The White Water showed almost 1/2 again more flow over the Cascade, or the Cascade was 1/3 more restrictive depending on how you look at the numbers.
This could make a noticable differance to systems with more than one block in series. For those systems the White Water would seem to be ahead of the Cascade.
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I'm not sure for the reason of the difference that copyman is seeing.
In my system I have 2 heater-cores in series, a sponge filter, two sweeped elbows, and about 4m of 1/2" ID tubing.
With the Iwaki MD-30RZ in my system the difference is 10.5-11.0lpm with the White Water and 10.0lpm with the Cascade.
With the Eheim 1250 I see 6.0lpm with the White Water, and 5.5lpm with the Cascade.
I'm using a regular Cascade as it would ship to people. No difference whatsoever.
The earlier Cascade prototypes had less tubes and larger jets, and were less restrictive than the White Water. With the shipping block that has changed slightly, but I kept a careful eye on the flow rate resistance so that this would not be an issue.