How much RO do you use per week for top ups

Discussion in 'General Discussions and Advice' started by LCornelius, 21 Jun 2013.

  1. LCornelius

    LCornelius Moderator

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    I would like to see if it is possible to calculate some sort of ratio.

    Give the following detail:

    Total system volume:
    DT size:
    Sump size:
    RO Usage:

    My system:
    Total system volume: 700L
    DT size: 1500 x 600 x 600
    Sump size: 1200 x 400 x 400
    RO Usage: 50L per week
     
    Last edited: 21 Jun 2013
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  3. Hammerhead

    Hammerhead

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    Location:
    Westville , Durban
    Total system volume: 560lt
    DT size: 1300 X 650 X 550 wl
    Sump size: 650 X 530X 300 wl ( 650 X 450 X 100 RO Chamber)
    Usage: 25lt in five days on average.
     
  4. RiaanP

    RiaanP Moderator

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    Location:
    Centurion
    difficult
    Main tank 750
    main sump 250
    Remote rock tank 220
    Remote DSB 220, (140 about after sand displacement)

    Second tank display 220L
    sump 150L (80-100L after sand displacement)

    Quarantine 90L
    Sump 80L

    RO usage per week, 150 to 200L
     
  5. Quintonv

    Quintonv

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    Maybe you should include your skimming technique wet or dry?
     
  6. Visser

    Visser MASA Contributor

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    Location:
    Willows,Pretoria /Brits
    My display nano:
    Total system volume: 178lt
    DT size: 550x500x450deep
    Sump size: Dont remember...
    Usage: 30lt in seven days on average.
    (DT in well ventilated living room)

    My main frag tank:
    Total system volume: +-160lt
    DT size: 600x600x400 deep
    Sump size: Dont remember...
    Usage: 20lt in Seven days on average.
    (frag tank in closed air conditioned room)
     
  7. Fanlie

    Fanlie

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    Dont worry :) each one have different

    -Main tank 1.6x0.6x0.6 (0.55)
    -main sump 1.2x0.45x0.45(0.30)
    -total water: -+ 600L
    -35kg LR

    RO usage per week, Winter 30L, summer 40L (3 120mm pc fan)
     
    Last edited: 21 Jun 2013
  8. Visser

    Visser MASA Contributor

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    Also perhaps include if a cooling fan is used to cool tank in summer as that would increase usage dramatically...
     
  9. Nur

    Nur Starz

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    Location:
    Cape Town
    Display 2m x 0.6w x 0.6h
    No sump.

    Top up RO 25 to 30lt per week.
     
  10. Ayoob

    Ayoob

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    Location:
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    1.5 x 0.6 x 0.7
    800 litre includes sump

    30 litres RO a week
     
    sleepy likes this.
  11. Rookie

    Rookie

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    Location:
    Eersetrust, Pretoria
    DT size: 1200 x 450 x 550
    Sump size: 1000 x 330 x 400

    Top up average 25 litres every week
     
    sleepy likes this.
  12. LCornelius

    LCornelius Thread Starter Moderator

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    Thanks for those that have responded so far!

    Will setup a spreadsheet later today or tomorrow and try to map it.

    There are many other variables that will play a factor.
    Just tried to keep it simple for some Friday fun.
     
  13. Andre@ReefAquatics

    Andre@ReefAquatics Sponsor

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    Location:
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    3000 x 1200 x 400, constantly !!!!
    1.2 x 60 sump
    Prob 60L
     
  14. mornewil

    mornewil Morne

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    Location:
    Retreat, Cape Town
    My Ex TL550

    Total system volume: 128L
    DT size: TL550 nano
    Sump size: around 25L of water
    RO Usage: 10-15L per week (Open top)
     
  15. gmccarthy

    gmccarthy

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    Interesting thread. Tagging along. New to reefing, still researching but didn't realize evaporation was so high.

    In my freshwater it's almost nothing.

    Time to add in ato to my research :)
     
  16. NJH

    NJH

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    Location:
    Helderkruin
    700l display and 100l sump. About 50litres a week.
     
  17. muzzthegreat

    muzzthegreat

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    What about lighting used? that would be a factor to evaporation. Metal Halides vs LEDs wouldn't that make a big difference?
     
  18. Tiger eye

    Tiger eye

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    Location:
    Centurion, PTA
    My 3ft

    Total system volume: 190L
    DT size: 110L
    Sump size: around +-80L of water after sand displacement.
    RO Usage: 30L per week
     
  19. dallasg

    dallasg Moderator MASA Contributor

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    Location:
    Sandton
    holding tanks
    Total system volume: 900L
    DT size: 1200x450x450 , 1000x1000x300, 900x320x320, 1500x700x200
    Sump size: 1000x1000x300
    RO Usage:140L per week
     
  20. Henkie

    Henkie

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    Location:
    Port Elizabeth
    Total system size 400L
    DT size: 95 x 95 x 50
    Sump: 75 x 45 x 30
    Ro usage: 30 - 40L per week depending on the weather
     
  21. Nur

    Nur Starz

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    @dallasg wins.. :tt2:

    Actually, it works out to 25 - 30 lt per DT so its average..
     
    Last edited by a moderator: 26 Nov 2015
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