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hypothetically to purhaps understand pressures in a wc-loop better:<br>
two 1.5 psi pumps sharing <i>one</i> reservoir will give approx. 3 psi in the reservoir? Or is the pressure maintained and only total flow increased?<br>
The pumps are not in serial but parallel, feeding two seperate block-rad-pump loops, but shared reservoir.<br><br>
Also; if a split is used (anywhere) the pressure should be somewhat equally spread on the number of split tubes from the 'feeding' tube, but the actual flowrate through the splits depend on the flowrates of the individual blocks?<br>
Or will a split result in that if the one of two block have say .1 lower 'native' flowresistance(again hypothetically), it will 'steal' both flow and pressure at a rate of factor x from the other block?<br><br>
Last; if the pump is rated at 1.5 psi it's regardless of tubing diam.? 1.5 psi in 1/4" as well as 1/2"?<br><br>
Any graphs/good faq/howto's on those issues?
 

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Just scroll down through this towards the bottom of the article he uses 2 pump in series might help give you a idea...I'll look around and see if I can find something else to.If you split your flow it does depend on the resistence of each individual WB, The water will take the path of least resistence,not good, you will have reduced flow in some of the blocks.The pressure question with 2 pumps 2 loops and 1 res, I think you will only have the pressure as measured for 1 pump..I think.<img alt="" class="inlineimg" src="/images/smilies/biggrin.gif" style="border:0px solid;" title="Big Grin">...<a href="http://www.xtremesystems.org/forums/showthread.php?t=117215" target="_blank">DDC Top & Pump Performance Comparison (Petra's, Radiical, Alphacool, etc.) - XtremeSystems Forums</a>
 

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Here is another one very interesting stuff..... <a href="http://en.wikipedia.org/wiki/Fluid_dynamics" target="_blank">Fluid dynamics - Wikipedia, the free encyclopedia</a> This one is more about pump placement.....<a href="http://www.overclock.net/water-cooling/122487-dual-pump-question.html" target="_blank">Dual pump question - Overclock.net - Overclocking.net<br></a>
 
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