Two Pumps

[Bigmack]

So whaddya think about using two pumps, one for the res to rad to res loop. And one for the cpu ,nb, and gpu loop. The res holds about a gallon. The pump for the rad has an open flow rate of 600 gals. per hr. The pump for the wb loop is 500gal per hr. the rad is a hydraulic oil cooler from a Yazzoo Lawn mower, (looks like a regular heater core). The idea is to keep the res water temp as low as possible reguardless of the heat load from the wb loop.

[lolito_fr]

My guess is you'd be better off running both pumps in series on one loop (they are apparently not wildly mismatched as regards max flow rates)
You gain more by increasing flow through the wbs than through the rad...
pump + wb specs?

Lots of discussion around this idea (+not much hard evidence)
http://forums.procooling.com/vbb/sho...ight=dual+pump
http://forums.procooling.com/vbb/sho...ight=dual+loop
http://www.ocforums.com/showthread.p...0&pagenumber=1

[Bigmack]

Thanks for the links to all the discussions about this topic Some very good information in there!! Scince this is a "Dusty Pockets" project, my pumps are not the best. 1st pump is a bilge pump rated at 600gph, the second is a pond pump rated at 500gph. Both are submersable and unable to connect in series. The water blocks are homemade.http://forums.procooling.com/vbb/sho...0&postcount=80. Hopefully I'll have the NB and GPU blocks finised this week.