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Old January 13, 2018, 04:23 PM
Join Date: Jan 2018
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Default Serial to parallel loop

So I want to switch to a paralell loop (only for looks) as I am aware temps will be lower and it depends on how restrictive both blocks are. My question is will it be sore on the D5 pump vs serial?
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Old January 13, 2018, 04:44 PM
dustin1706's Avatar
Join Date: May 2010
Location: Alberta
Posts: 684

My System Specs


Ignoring the usual back and fourth about serial vs parallel loops in regards to cooling, parallel will actually be less restrictive for the pump. Definitely no concern about that. The only concern (as you've already identified) is making sure that both blocks are getting flow. If the system is pretty new, good to go. If this system has been running for a long while or if you've used fluids with lots of dye, I'd clean the blocks out to make sure neither is partially plugged off.
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Old January 13, 2018, 08:19 PM
Mr. Friendly's Avatar
Join Date: Nov 2007
Location: British Columbia
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why not go with a dual pump design? just get one's that are smaller/quieter but capable?
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Old January 13, 2018, 08:58 PM
KaptCrunch's Avatar
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like Dustin said make Shure blocks are getting by bench testing the loop without motherboard, GPU or whatever block.

have a manifold off the pump pressure side be it 2 or more outlets , just plumb block inlets and have return going to same size cup to meter, pail to catch flow while priming

fill res and prime pump that all water block are getting flow to a pail

stop pump then fill res after all is primed

then place each cup after water block, turn on pump

turn off pump then look at cups levels

what one has the most add a flow control to that block and test again till matches cup levels on a 2 block set-up if more than 2 blocks match flow 2 and the next add another flow control to third and so on till all are even

i know its a pain but seeing is believing on parallel loop note: 2 manifolds

with serial loop its the slowest block dictates flow of loop
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