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Unread 12-14-2009, 05:44 PM   #11
billbartuska
Cooling Savant
 
Join Date: Jun 2005
Location: Skokie, Illinois
Posts: 322
Default Re: NEED HELP: What's better? 1-500GPH pump, or 2-250GPH pumps???

Quote:
Originally Posted by kangyu View Post
He would get better temps putting the two radiators in parallel. Lower back pressure, higher flow, longer time in the radiators.
Wat?

Overall, flow rate may increase slightly, but the flow rate through each rad will be halved, and lower flow rate = less heat transfer (less turbulance).

And the water spends the same amount of time in the rad(s) no matter what the flow rate is. With a lower flow rate it stays in the rad longer, but doesn't come back to the rad as often.

See: Watercooling Myths Exposed
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