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Volenti · 07-12-2002, 10:02 PM

Just to continue on with some measured results with my 2 pumps;

Airspirit is on the right track with his "With the pumps in series, your GPH will be equal to the GPH of the stronger pump..."

BUT, it depends on the restriction to flow, in my earlier test setup the flow with both pumps going ended up slightly lower than with just the big pump by it's self (1620L/H v 1800L/H), however, when you put both pumps to work through a water block,rad ect you end up with a net gain (900L/H large pump, 1220L/H both pumps)

I havn't done any paralell tests since my prototype block isn't done yet, but getting both pumps efficiently through it would require 3 half inch fittings in and out,since the large pump really needs 2 half inch fittings by it's self, which I suppose won't be that hard given the area that you can play with on a P4...

oh in case your wondering, I don't have to worry about the rad setup since I use bong cooling, everything just get's dumped into the top of the bong. which is one of the reasons why I'm being obsessive about flow rate (:

07-12-2002, 10:02 PM	#50
Volenti Cooling Savant Join Date: Jan 2002 Location: in a nice cool spot Posts: 427	Just to continue on with some measured results with my 2 pumps; Airspirit is on the right track with his "With the pumps in series, your GPH will be equal to the GPH of the stronger pump..." BUT, it depends on the restriction to flow, in my earlier test setup the flow with both pumps going ended up slightly lower than with just the big pump by it's self (1620L/H v 1800L/H), however, when you put both pumps to work through a water block,rad ect you end up with a net gain (900L/H large pump, 1220L/H both pumps) I havn't done any paralell tests since my prototype block isn't done yet, but getting both pumps efficiently through it would require 3 half inch fittings in and out,since the large pump really needs 2 half inch fittings by it's self, which I suppose won't be that hard given the area that you can play with on a P4... oh in case your wondering, I don't have to worry about the rad setup since I use bong cooling, everything just get's dumped into the top of the bong. which is one of the reasons why I'm being obsessive about flow rate (: __________________ feel free to icq/msn me, I'm always willing to toss around ideas.