two pumps, one loop?

doggles · 17 May 2011 at 22:24

thanks for reading this,

do you know if it's viable or a bad idea to run one loop with two identical pumps in to increase the flow rate?

I.e res-pump-rad-cpu-gpu-res2-pump2-rad2 ?

I ask this as I have an xspc 2bay res & two pumps but would prefer one loop rather then two

Surveyor · 17 May 2011 at 22:46

Is that the 2 bay split res. or 2 bay combined res?

doggles · 17 May 2011 at 22:52

split res down the middle. supports two pumps

JeffyB · 17 May 2011 at 22:53

Yes you can use multiple pumps in the same loop but they really need to be identical pumps or they are prone to die due to the difference in flow. The big plus point of having 2 pumps in one loop is the reassurance that if a pump fails you'll still have moving water in your loop.

Surveyor · 17 May 2011 at 22:55

It will work fine.

You'll just have more tubing to fit in.

doggles · 17 May 2011 at 22:56

yea they are h two Laing DDC 1+ Ultra pumps. the bay is Laing DDC Dual Bay* Multi Fascia Reservoir TWO - XSPC

zulu9812 · 17 May 2011 at 23:17

A large benefit of pumps in serial is redundancy - if one pump fails, the other will still keep the loop going. On the other hand, I've always thought that if you buy 2 identical pumps at the same time then one would expect them both to fail at the same time.

Surveyor · 18 May 2011 at 07:38

zulu9812 said:
I've always thought that if you buy 2 identical pumps at the same time then one would expect them both to fail at the same time.

That's extremely unlikely.

mathwat · 18 May 2011 at 07:51

zulu9812 said:
A large benefit of pumps in serial is redundancy - if one pump fails, the other will still keep the loop going. On the other hand, I've always thought that if you buy 2 identical pumps at the same time then one would expect them both to fail at the same time.

What? so if you buy two exact same gfx cards they will fail the same time? what a load of rubbish!! :rolleyes:

doggles · 18 May 2011 at 19:01

what he's saying if you would think that if you have two identical items made the same way doing the same thing then in theory they should brake at the same time.

understandably they don't

weird_dave · 19 May 2011 at 11:03

I had 2 120GB deathstars which failed on the same boot

Makhaira · 19 May 2011 at 11:11

A question born out of ignorance here - why would you put the pumps in serial and not in parallel with a y-piece? Surely that would be better for both redundancy and flow?

^^ Not a challenge, just a genuine question, I've not got any experience with watercooling.

buttkinz · 19 May 2011 at 18:37

because you want the loop to be arranged so after the first pump you have a rad and a block, then another pump through maybe the graphics cards and the last rad. puts less strain on the pumps that way. Can be different but that is just an example