DIY Calcium Reactor

Discussion in 'DIY' started by pixelpixi, Jan 18, 2009.

  1. GreshamH

    GreshamH Guest

    which model Eheim?
     
  2. Gomer

    Gomer Honorary Member

    Pretty sure glycerin is used only because it evaporates much slower than water and is "safe" unlike oils.
     
  3. iani

    iani Guest

    Tony I know a lot of people actually mix glycerin and water. Since glycerin actually can absorb water from the air I don't think evaporation is an issue.
     
  4. Gomer

    Gomer Honorary Member

    Glycerin does evaporate :)
     
  5. GreshamH

    GreshamH Guest

    [quote author=iani link=topic=5970.msg76330#msg76330 date=1232640875]
    Tony I know a lot of people actually mix glycerin and water. Since glycerin actually can absorb water from the air I don't think evaporation is an issue.
    [/quote]

    For $$$ reasons or performance?
     
  6. iani

    iani Guest

    Performance, glycerin is too thick if you are using high rate of CO2.
     
  7. Gomer

    Gomer Honorary Member

    both. Glycerin is more $ and too thick as is. Glycerin is also hygroscopic and will equilibrate till it has 20% water.
     
  8. Vincerama2

    Vincerama2 Evil Overlord

    [quote author=GreshamH link=topic=5970.msg76300#msg76300 date=1232610080]
    The only thing that concerns me is MJ o-rings are not super safe for external use IMO/IME. I'd run that in sump if you can (remove metal fitting of course)
    [/quote]

    My mega kalkwasser mixer uses an external maxijet and it has never leaked (4 years!) However, I DO put some silicon sealant on the impeller/input/output housing before closing up the pump. The kalk mixer eats an impeller every year or so and thats with only 2x 15 minute on periods per day. Bad kalkmixer design on my part as the intake is too low and some kalk powder can get in there. Also the direction I put the pump (the impeller shaft is vertical, with the impeller blades on top and the "well" that the impeller sits in is down, so it can accumulate undissolved kalk)... but I digress.

    Use some silicon (or plumber's goop) on the impeller cover to prevent leaks. And of course, put the whole reactor in a wash basin for a couple of days when you start using it...just in case!

    V
     
  9. Vincerama2

    Vincerama2 Evil Overlord

    [quote author=Gomer link=topic=5970.msg76328#msg76328 date=1232639658]
    Pretty sure glycerin is used only because it evaporates much slower than water and is "safe" unlike oils.
    [/quote]

    What about baby (mineral) oil? Oil and water don't mix...would fish eat oil bubbles? I know veggie oils would go rancid after a while.

    V
     
  10. iani

    iani Guest

    Since is a petroleum product it probably wouldn't be safe.
     
  11. GreshamH

    GreshamH Guest

    http://en.wikipedia.org/wiki/Mineral_oil

    Yah, I wouldn't touch my tank with that :)
     
  12. Vincerama2

    Vincerama2 Evil Overlord

    I never understood what "Mineral Oil" is. And when talking about motor oil, I never could figure out what "Synthetic Oil" is made of...the answer I always got was "Oh, synthetic motor oil is mineral oil" Huh? I'm off to check wikipedia now!

    I guess it's just best to stick some ready handy and cheap RO water into the bubble counter, even if you have to replace it every once in a while, it's safe!

    V
     
  13. Vincerama2

    Vincerama2 Evil Overlord

    OK, according to Wikipedia, it is a petroleum product, but it's used as baby oil externally OR CONSUMED AS A LAXATIVE FOR BABIES. So I guess it's not that dangerous if we feed the stuff to babies!!

    In anycase, I'll stick to RO water in a bubble counter.

    V
     
  14. pixelpixi

    pixelpixi Guest

    Well, chlorinated water is safe for babies...
     
  15. GreshamH

    GreshamH Guest

    [quote author=Vincerama2 link=topic=5970.msg76402#msg76402 date=1232657780]
    OK, according to Wikipedia, it is a petroleum product, but it's used as baby oil externally OR CONSUMED AS A LAXATIVE FOR BABIES. So I guess it's not that dangerous if we feed the stuff to babies!!

    In anycase, I'll stick to RO water in a bubble counter.

    V

    [/quote]

    Keyword: LAXATIVE :) What goes in must come out. A skimmer wouldn't help much with it so you'd have to try to skimmer it off the surface and pery nothing captured any. The scale of a HUMAN compared to that of a coral is pretty decently different :D

    Try it, let us know :p
     
  16. sfsuphysics

    sfsuphysics Supporting Member

    Mineral Oil.... it's like Essential Elements... YOUR TANK NEEDS IT MAN!!!
     
  17. Gomer

    Gomer Honorary Member

    Cause its got electrolytes?
     
  18. pixelpixi

    pixelpixi Guest

    [quote author=GreshamH link=topic=5970.msg76314#msg76314 date=1232611640]
    which model Eheim?
    [/quote]

    It doesn't need to be big. 1046 or 1048 I'd say.
     
  19. pixelpixi

    pixelpixi Guest

    [quote author=Gomer link=topic=5970.msg76415#msg76415 date=1232662973]
    Cause its got electrolytes?
    [/quote]

    It has what tanks CRAVE!!!
     
  20. Gomer

    Gomer Honorary Member

    [quote author=pixelpixi link=topic=5970.msg76432#msg76432 date=1232667488]
    [quote author=Gomer link=topic=5970.msg76415#msg76415 date=1232662973]
    Cause its got electrolytes?
    [/quote]

    It has what tanks CRAVE!!!

    [/quote]
    I love you just a little bit more today :D
     

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