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Watercooling.. how much fluid?

Discussion in 'Watercooling' started by dazzlaa, Dec 24, 2018.

  1. dazzlaa


    Joined: Jan 30, 2017

    Posts: 499

    Location: Lincs

    As the title says really... I now have prettyy much all parts sorted to start on this great adventure: CPU block, GPU block, 140 res, 360 rad and 240 rad.

    Do you think 1ltr of fluid is enough?

    Many thanks, and Merry Christmas.
  2. Jokester


    Joined: Aug 7, 2003

    Posts: 39,137

    Location: Aberdeenshire

    1l would normally be enough for a standard loop, what type of fluid are you using? Water is so cheap you might as well buy 5l for £3-£4 and then just dose it with the right amount of biocide/corrosion inhibitor.
  3. dazzlaa


    Joined: Jan 30, 2017

    Posts: 499

    Location: Lincs

    I was just gonna get 1 ltr of pre mixed to be honest mate!
  4. Mcthommo


    Joined: Jan 28, 2015

    Posts: 450

    Get 2l and you have enough for topping up if 1l is not enough- I’ve got 2 360 rads in loop with gpu and cpu with 250ml res and is just about the 1l mark
  5. dazzlaa


    Joined: Jan 30, 2017

    Posts: 499

    Location: Lincs

    That's good to know mate, sounds like your loop is a higher capacity than mine then so probably 1 ltr is plenty. I'll get 2 anyway to be sure :)
  6. 3t3P


    Joined: Dec 20, 2006

    Posts: 2,974

    1l won't be enough for that no way. Buy at least 2l
  7. LuckyBenski


    Joined: Dec 28, 2017

    Posts: 3,854

    Location: London

    I have a 30mm 120 radiator and a 45mm thick 360, plus CPU and GPU blocks with 250ml reservoir. My loop uses 1.1l of water. I found out while flushing with distilled by measuring as i filled it.

    It's a really inconvenient size so i used 1l of premix plus 100ml of distilled!
  8. Glanza


    Joined: Mar 13, 2007

    Posts: 10,091

    Location: South Yorkshire

    All the loops I've had so far have used less than 1l. That's including T H I C C rads in there.
  9. CaptainShiznit


    Joined: Oct 20, 2016

    Posts: 103

    Location: Liverpool, UK

    I'd always buy the extra. At least it will give you incentive to change the coolant at some point :)
  10. ElBurge


    Joined: Nov 14, 2013

    Posts: 43

    2l for sure - I have thick 280+120mm rads + CPU block and 400ml res and uses bang on 1l.
  11. Jediben


    Joined: Aug 30, 2009

    Posts: 301

    4l. Use 2 now and then you have 2l spare for the first time you replace it or if you have any emergencies (leaks).
  12. malfunkshun


    Joined: Aug 20, 2003

    Posts: 6,666

    Location: Pembrokeshire

    I think it is time I got a new res, mine takes more than a litre by itself if I fill it fully.
  13. almightydutch


    Joined: Oct 3, 2011

    Posts: 160

    Location: Hednesford, Staffs

    Always get 2l if you think you might be close.

    My old loop took a shade under 1.5l but that was with 55x360 rad and 45x280 with large res and lots of tubing
  14. MikeTimbers


    Joined: Oct 18, 2002

    Posts: 6,811

    Location: New Eltham, London

    two 30x280mm, two GPUs, one cpu, small res, less than half a litre.