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I didn't mean to say that calling the low flow blocks low flow and calling the high flow blocks high flow was wrong. That whole part about the blocks was in reference to:
My point being that the majority of European made blocks tend to be high flow, thus this would seem to me to be their acknowledgment that making a high restriction block purely for the theory of decreasing flow to decrease temps doesn't make any sense. The reason Euro blocks tend to be high flow is that they use weak pumps, thus they need less restrictive block to not get destroyed by flow scaling. Just as an example Eheim pumps are far more popular in Germany than here, which iirc one of the more popular ones has about half the pressure of a stock DDC 3.1 (or DDC1 for you).Low flow is popular in Europe and the far east. The object of this is to use the blocks to slow down the flow rate of the fluid in order to pick up as much heat as possible, thus using the radiator as the main source of cooling. Problem is, Chinese radiators aren't the best, so that system doesn't work very well.
Also, a thing you might want to add is that a DDC1 can be modded to a DDC1+ rather easily, so it might be a good option for the budget conscious. I know here a 3.1 can be had for $50, while a 3.2 is about $65.




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