Dual Pump Setups?

[Nephanor]

Is there a guide/FAQ for making a dual pump setup?  I have been reading and heard they are good because they keep the flow constant, and they also have built in redundancy in case one pump fails.  My main questions involve order.  I know that you should have your resevoir feeding into your pump, but what about two pumps?  Do you have two resevoirs?  Honestly, with the build I am working on, two resevoirs isn't a bad idea aesthetically.  Also, would you want the pumps in series or parallel?  Lots of things I want to know, so any guide/FAQ would be appreciated!  Thanks!

[W-L]

1 minute ago, Nephanor said:

Is there a guide/FAQ for making a dual pump setup?  I have been reading and heard they are good because they keep the flow constant, and they also have built in redundancy in case one pump fails.  My main questions involve order.  I know that you should have your resevoir feeding into your pump, but what about two pumps?  Do you have two resevoirs?  Honestly, with the build I am working on, two resevoirs isn't a bad idea aesthetically.  Also, would you want the pumps in series or parallel?  Lots of things I want to know, so any guide/FAQ would be appreciated!  Thanks!

It depends on how you design your redundancy, the simplest is to have the two pump are in series right after and below the res. 

[tekgeek1205]

how many blocks will it be pushing through.

 

series= higher pressure

parallel= higher flow rate.

 

I have 2 MCP35x's in Series because of the 30 feet of radiator hose.

[Nephanor]

4 minutes ago, tekgeek1205 said:

how many blocks will it be pushing through.

 

series= higher pressure

parallel= higher flow rate.

 

I have 2 MCP35x's in Series because of the 30 feet of radiator hose.

It's going to be pushing through a quad GPU block setup and a single CPU block, plus two rads.  And that's good to know.  Not sure which is better in that situation.

[W-L]

1 minute ago, Nephanor said:

It's going to be pushing through a quad GPU block setup and a single CPU block, plus two rads.  And that's good to know.  Not sure which is better in that situation.

Your going to want to go with series it's very rare you really need to setup the pumps in parallel. Also the quad setups for GPU's they make semi-parallel terminals which helps cut down on restriction. 

https://www.ekwb.com/shop/ek-fc-terminal-quad-semi-parallel

[tekgeek1205]

Series, your going to need the pressure. 

[emosun]

a single pump would also be more reliable than two.

with two you have redundancy , but in turn you then have two pumps that can fail instead of one , plus more connection points that can leak.

a single higher quality pump would be a lot better then trying to double up on low quality ones.

[For Science!]

1 hour ago, Nephanor said:

-snip-

Series is unanimously better than parallel in the case of pump configurations. A parallel pump configuration has huge penalties if one was to fail in terms of flow rate with minimal gains even if they were both operational.

 

2 pumps in series one after another after a single reservoir is the way to go for 2 pumps. EKWB for example provides a good dual D5 pump as a single product that requires no extra fittings. 

[Nephanor]

4 hours ago, For Science! said:

Series is unanimously better than parallel in the case of pump configurations. A parallel pump configuration has huge penalties if one was to fail in terms of flow rate with minimal gains even if they were both operational.

 

2 pumps in series one after another after a single reservoir is the way to go for 2 pumps. EKWB for example provides a good dual D5 pump as a single product that requires no extra fittings. 

Good to know!  I was looking at EK for the main components anyway, as their configuration was already pretty awesome.  May swap out for one of the FrozenQ Res, since they have some gorgeous looking ones!

[Mick Naughty]

Just ran one pump and the other about half way though the loop. Just did it because I thought it would matter  

A it was good for was redundantcy. As the flow increase and pressure did nothing but alleviate stress from the other pump.  Which is good I guess.