Martin's Koolance RP-402X2 Review (Working Thread )

[CedricFP]

What I find interesting is how similar the RPM per Flow rate is for each test and the fairly linear reduction in RPM as flow increases. Anyhow, there are the details.

Great testing Martin. Yes, the same consistency of RPM versus flow rate for both single and dual pump is very interesting. However, the scaling is a little less than linear for PSI - I suppose due to the reservoir as you alluded to previously.

I'm a bit confused though - with reports of dead DDC's being hot topics, many surmised that the higher the RPM of the DDC, the more likely it was to die sooner, rather than later. The conclusion was that two DDC's in series would kill the pumps quicker than a single.