Water Loss Through Evaporation

Discussion in 'General Discussions and Advice' started by Neil H, 26 Apr 2009.

  1. Neil H

    Neil H Moderator MASA Contributor

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    Out of interest I did a calculation this evening .....

    I replace, on average 1.5% or about 8.5L of my tanks volume every day through evaporation... that means that roughly every 2 odd months my entire tank volume has evaporated and been replaced through my top up system !

    I do encourage this through the use of fans in order to cool my tank though
     
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  3. keyaam

    keyaam

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    Same here. Depends on the climate. I top up about between 1-2% of the total volume daily.
     
  4. jacquesb

    jacquesb Retired Moderator

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    Me? +- 7 to 10 litres of RO water goes into my tank every day... not sure, because the RO drips PERMANENTLY into my 2 metre reef tank....
     
  5. IMarine

    IMarine

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    mine 15-20lts a week on 1,5mt
     
  6. gaz19

    gaz19

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    25l - 2days sometimes 3days
     
  7. crispin

    crispin

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    3l over 8 days in my 60l nano. but i do try keep evaporation down as much as I can and we doing have a hot climate here :(
     
  8. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    :lol::lol::lol::lol:
     
  9. mupwi

    mupwi

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    any input fron durbanites this would intrest me as im planing my 1200l system and need to look at sizing a system for toping up
     
  10. Mr_G

    Mr_G

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    i only loose about 2 Liter a day in my 300L setup, I have a closed canopy, guess it helps, also over my overflow I have glass, my sump is the only open thing...but its good to evaporate, means your eplacing more clean water, thus less water changes...
     
  11. butcherman

    butcherman Moderator MASA Contributor

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    20l per week on a 300l system
     
  12. dallasg

    dallasg Moderator MASA Contributor

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    as i mentioned before in a post

     
  13. Mr_G

    Mr_G

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    oh my life, awesome description there!
     
  14. mupwi

    mupwi

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    thanks that formula is verry informative I calculate with my curent temp and humidity with zero air flow I should have +- 10l/day eveporation on my 1200l system I can and with fans runng in the summer will probably be closr to 20l I think I might have to vent the cabnet outside as that is a lot of water floting around the air especialy seing as my wank is going to devide my office area from the lounge the 2 areas in the house with the most electronic equipment
     
  15. magman

    magman

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    I top up about 0.5% a day, using a chiller though for cooling, and it is humid here.
     
  16. Pistolshrimp

    Pistolshrimp

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    i use an average of 25l a week on my 250l setup with open top and algea scrubber, its humid here so we have slow evap rates compared to the rest of the guys, in winter it picks up a bit but not too much
     
  17. preshan

    preshan <img src="/images/ecrccom.gif">

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    hey neil i use about 120L a week on a 1600L system
    im also using a big fan that switches on with the lights
     
  18. Andreas

    Andreas

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    I on the other hand use about 20-25 a week on a 800l system and currently don't have a fan blowing over my tank. I have a chiller, 3 X 150MH and 4 X 54W T5's.

    The use of fans greatly increase the evaporation rate and I could not keep up with my 20l RO container on my 1.8M whilst using fans. 20l lasted about 2 days then.
     
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