Mixing pump types?

Discussion in 'Water Cooling' started by RogueTadhg, Apr 3, 2019.

  1. RogueTadhg

    RogueTadhg [H]ard|Gawd

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    Has anyone ever mixed a DDC pump and a D5 in the same loop? One for better pressure and one for better flow rate?
     
  2. Dullard

    Dullard [H]ard|Gawd

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    I dropped a link to Martin's Liquid Lab test on dual pumps in your Dual Pumps thread. It has the info in it, including running two different pumps - but I don't think any of his testing concluded that two different pumps could perform different functions in the same loop.
     
  3. jmilcher

    jmilcher [H]ardness Supreme

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    In a closed loop two different pumps would be a disaster.
     
  4. Dullard

    Dullard [H]ard|Gawd

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    From

    https://martinsliquidlab.wordpress.com/2011/04/26/pump-setup-series-vs-parallel/2/
     
  5. Tsumi

    Tsumi [H]ardForum Junkie

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    It won't add like you think it would. If you put them in series, at low restriction you will get the max flow rate of the D5, while the maximum head pressure is the D5 + DDC. In a low restriction loop, this can be dangerous as the DDC can easily overheat. A high restriction loop would not have this problem, but in many cases, a dual pump head of the same two pumps is easier to place and often more aesthetically pleasing than tubing between two separated pumps.