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Mixing Pumps?

post #1 of 16
Thread Starter 
Hey Guys,

I recently bought a Laing DDC-1T MCP350 (10W) it's running fine but would like a little bit more power.

Can i add another Laing DDC1+ MCP355 (18W) with a Dual Top. Or because one is more powerful than the other will it cause problems?

Reason i ask is there's only £4.00 difference in price.

Also the Stock Impeller is Black? Where do i get a Blue one from to match the one i bought from here.

Thanks,
Lee.
    
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post #2 of 16
I think it's risky.

The high speed pump will be fine, but the slower one will probably be forced to speed up beyond it's design specs which may shorten it's life.


Edit:
Also, I don't think you'll see that big a difference in the end results.
    
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post #3 of 16
Quote:
Originally Posted by Crabid View Post
I think it's risky.

The high speed pump will be fine, but the slower one will probably be forced to speed up beyond it's design specs which may shorten it's life.


Edit:
Also, I don't think you'll see that big a difference in the end results.
This
    
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post #4 of 16
I would suggest you read this...

http://martinsliquidlab.org/2011/04/...s-vs-parallel/

It is something of a forum myth that you cannot mix pump types and Martin has done the work for you with series pumps.

There is also a discussion on this topic over at

http://www.xtremesystems.org/forums/...d.php?t=270201

(there may be one here too but I am new here compared to there so I'm not really sure)
post #5 of 16
Thread Starter 
Okay cool thanks for the help.
    
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post #6 of 16
I recently asked the very same question: http://www.overclock.net/water-cooli...mp-models.html
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post #7 of 16
Just add another 10watt DDC1-T pump from Bmaverick. Two 10watt DDCs will be enough for what you need.
     
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post #8 of 16
Quote:
Originally Posted by Crabid View Post
The high speed pump will be fine, but the slower one will probably be forced to speed up beyond it's design specs which may shorten it's life.
I can see your thinking, but so long as the loop flow rate doesn't go over the max flow rate of the slower pump then you will not be exceeding the pump design specs.

OP, go ahead and mix the pumps if you want, but you probably won't see a huge drop in temperatures with a 350 and 355 compared to two 350s.
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post #9 of 16
Why would you even need 2? The 355 is plenty of power. Buy the 355 sell the 350....
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post #10 of 16
you won't see any problems mixing pumps. Martin did testing and everything ended up fine. Neither pump will damage the other.
 
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