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Google Cools Data Center With Bathroom Water

judgecorp writes "Google is cooling its data center in Douglas County, Georgia, using 'recycled' water that has been through the bathtubs and toilets of the surrounding community. So called 'grey' water is perfectly adequate for the data center's cooling system which relies on evaporation (the wet T-shirt effect), says Google."

61 of 230 comments (clear)

  1. water from a toilet... by bman08 · · Score: 5, Funny

    does not have the electrolytes data centers crave.

    1. Re:water from a toilet... by mwvdlee · · Score: 5, Funny

      They're... what data centers crave!

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    2. Re:water from a toilet... by pinfall · · Score: 5, Funny

      This week's Google Doodoo was submitted by Charles Breckinridge on Lorimer Street. Notice the raspberry seeds!

    3. Re:water from a toilet... by willaien · · Score: 2

      You missed the Idiocracy reference. For background, the idiots of the future were trying to grow plants with Brawndo (an in-universe ripoff of Gatorade/other sports drinks), because it has replaced water in people's diets, and they can't think of using water for anything but flushing a toilet.

      Plants didn't take to it much better than your pipes would.

  2. The wet t-shirt effect? by betterunixthanunix · · Score: 4, Funny

    I...I am not even sure what say to that...

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    1. Re:The wet t-shirt effect? by vlm · · Score: 4, Funny

      I...I am not even sure what say to that...

      Strange but true: If you use water blocks to cool a server, the cdrom eject button pokes out an extra 1/4 inch due to the cooling effect. Of course I haven't seen a new rackmount box with an internal cdrom in some years, so I guess this only applies to racks that are sagging with age (ugh)

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    2. Re:The wet t-shirt effect? by BlueTrin · · Score: 2

      It is the cooling effect you feel when wind is blowing on you and you wear a wet T-shirt.

      Part of it is caused by the evaporation of water.

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    3. Re:The wet t-shirt effect? by arth1 · · Score: 5, Funny

      It's the juxtaposition of "water that has been through the bathrooms and toilets" and "wet T-shirt" that gives me a mental image I didn't need.

      And yes, I'm sure there's a rule 34 for that too, and I do not want to know.

    4. Re:The wet t-shirt effect? by yourpusher · · Score: 5, Funny

      I...I am not even sure what say to that...

      "Show us your bits!"

    5. Re:The wet t-shirt effect? by JamesP · · Score: 2

      Well it's quite simple

      1 - dress a wet t-shirt
      2 - go outside (preferably if you live in NYC on the month of January)
      3 - tah dah!

      Now, seriously, this effect can be more easily felt for example if you drop ethanol (pure or moderately diluted - most spirits will do) in your hand, and you feel it cool.

      Volatile substances (water is volatile but not as much as other substances) cool the substances they are in contact with when they evaporate (so what's cooled is usually the amount of liquid that hasn't evaporated yet and its substrate)

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    6. Re:The wet t-shirt effect? by SleazyRidr · · Score: 4, Funny

      2 girls 1 datacentre?

  3. Well, that explains crappy search results. by Anonymous Coward · · Score: 5, Funny

    (rimshot)

  4. Re:Shit by ThePromenader · · Score: 4, Funny

    Answer: They filtered to MSql databases.

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  5. Wet T-shirt effect by Sarten-X · · Score: 4, Funny

    Apparently evaporation is the tendency for young women on spring break to get drunk and engage in civil disobedience of public indecency laws. Somehow, this is related to cooling.

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    1. Re:Wet T-shirt effect by alex67500 · · Score: 2

      Apparently evaporation is the tendency for young women on spring break to get drunk and engage in civil disobedience of public indecency laws. Somehow, this is related to cooling.

      Hence the saying "all the cool kids do it".

    2. Re:Wet T-shirt effect by Rich_Lather · · Score: 2

      G( ^ Y ^ )gle!

  6. Graywater vs. Blackwater by tverbeek · · Score: 5, Informative

    "Graywater" is water that does not contain human waste, but has been used for other purposes and isn't fit for drinking.

    "Blackwater" is sewage water containing human waste (and easily confused with the mercenary business formerly owned by Erik Prince).

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    1. Re:Graywater vs. Blackwater by PopeRatzo · · Score: 2

      "Blackwater" is sewage water containing human waste (and easily confused with the mercenary business formerly owned by Erik Prince).

      And both are named after an old Doobie Brothers song.

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    2. Re:Graywater vs. Blackwater by jbengt · · Score: 5, Informative

      "Graywater" is water that does not contain human waste, but has been used for other purposes and isn't fit for drinking.
      "Blackwater" is sewage water containing human waste (and easily confused with the mercenary business formerly owned by Erik Prince).

      Exactly.

      Of course, if you read TPWFA (The Poorly Worded Fine Article), you'll find that they are using neither grey water nor black water, they're using treated effluent from the local sewage treatment plant, which should largely be free of solids and possibly decontaminated (in Chicago, anyway, there's a controversy brewing because the treated water dumped into the river is full of nasty bacteria). They will have to treat it further - even clean, potable water needs to be treated when using it in a cooling system in order to prevent fouling of the equipment and possible microbiological growth. Then, as the article says, it gets treated again before it is dumped into the river, since the water accumulates dissolved minerals and other solids and because the treatment chemicals added may themselves be bad for the environment.

    3. Re:Graywater vs. Blackwater by JoeMerchant · · Score: 3, Informative

      Greywater only contains a little poo, hair, and used toothpaste. See also: Humanure

  7. Hooray for common sense. by jeffb+(2.718) · · Score: 3, Insightful

    Engineers have been considering approaches like this for ages. It's good to see it being put into practice.

    As best I can tell, one of the biggest hurdles is local waste-handling laws. When we had a local drought a few years ago, we were saving wash water to put on our outdoor plants -- but that was a violation of local policy, because cooties from your dirty clothes might get into The Environment, contaminating all the bird and squirrel and cat and dog waste that's already there.

    I'm sure Google's treatment policies have satisfied the local authorities, and if they're proceeding with the project, I'm sure they've found a way that's cost-effective.

    1. Re:Hooray for common sense. by SuricouRaven · · Score: 4, Informative

      There is a form for everything. In some states in the US, it's illegal for you to collect and use rainwater for anything. States grant exclusive right to water catchment to various water companies, so for anyone else to capture that water before it reaches the reservoir is effectively stealing.

    2. Re:Hooray for common sense. by Anonymous Coward · · Score: 2, Insightful

      While it may sound ridiculous, it becomes less ridiculous once you remember that many states are almost all desert, and thus water collection and usage really does need a management system that wouldn't be the case elsewhere.

  8. Faced with all the stupid comments above by Kupfernigk · · Score: 2, Informative
    Haven't you ever heard of filters, guys? I mean big cloth or paper things that get stretched on big frames and then the water gets pumped through them and all the muck gets extracted, not the sort of filters that IT people know about. Have you ever stopped to think about the amount of mud in a water reservoir after the wind and rain have whipped it up a bit? Doesn't get in your drinking water, does it?

    I am afraid that my opinion of the IQ of the average /. reader just dropped an infinitesimal amount.

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    1. Re:Faced with all the stupid comments above by Sique · · Score: 2

      But normally you don't use the sieve type of filters. Sieves tend to get clogged very easily. Normally you use a three-chamber-system. The first two chambers are connected near the bottom, the third one connects to the second chamber via a spillover. Untreated water enters the first chamber, and all swimming particles stay there. Heavier particles sink to the bottom. The water enters the second chamber via the connection and is mainly clean of any swimming particles, while still containing some heavier solid material. The water entering the third chamber via the spillover is mostly free of any particulate matter, because all the remaining particles stay in the second chamber. The third chamber then gets emptied via an outflow at the bottom.

      This water can still contain micro particles which neither drift to the surface nor sink down to the bottom. Thus the water can be treated via an micro filter, e.g. a bassin with reed it enters at one site and an outflow at the other. Except for the substances soluted in the water, the water is clean and can be used for most applications.

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    2. Re:Faced with all the stupid comments above by DerekLyons · · Score: 2

      Have you ever stopped to think about the amount of mud in a water reservoir after the wind and rain have whipped it up a bit? Doesn't get in your drinking water, does it?

      An almost miniscule portion of said mud does so - because the designers of such reservoirs aren't stupid and place the intakes well away from the shores/edges and inflows, where 99.9999% of such debris is. Not to mention you vastly overestimate the amount of mud and debris "whipped up" in the first place.
       

      I am afraid that my opinion of the IQ of the average /. reader just dropped an infinitesimal amount.

      My estimation of you dropped by quite a bit more than an infinitesimal amount - because you made a stupid and groundless assumption and the proceeded to treat said assumption as if it were a fact.

  9. Re:not a good idea! by Sarten-X · · Score: 2

    The pipes that carry water to the systems would likely not exist.

    Rather, like most cooling systems, the water is likely used to cool a heat exchanger, which in turn cools air that's blown into the server rooms. If a pipe gets clogged (which is unlikely, since the pipes have little reason to be as small as household ones), that heat exchanger just won't be as cold for a while.

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  10. Star Trek by maroberts · · Score: 4, Funny

    Kirk: The cooling system to the warp drive is down again Scotty. How soon can you fix it?
    Scotty: Ach Jim, I'm a warp drive engineer, not a plumber....

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  11. Black vs Grey vs Treated by zenyu · · Score: 5, Informative

    I'm no potty expert, but I thought that water that is output from a toilet is called black water, water collected from the bathtub, and kitchen are called grey water, and what they are actually using is called treated water.

    Am I just behind the times on the terminology or is the article's writer just being sloppy?

    1. Re:Black vs Grey vs Treated by txmcse · · Score: 2

      You are correct. the writer was just being sloppy.

    2. Re:Black vs Grey vs Treated by EmagGeek · · Score: 2

      Correct. They are using treated water, which is neither Black nor Grey water.

  12. All together now.. by RenHoek · · Score: 4, Funny

    Pooping in the sink,
    pooping in the sink,
    I'm clogging up their coolers
    'cause I'm pooping in the sink!

  13. came here to say this! by pecosdave · · Score: 3, Informative

    Shower, bathroom sink, maybe clothes washer - not toilet.

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  14. IF they have that much grey water.... by Lumpy · · Score: 2

    They need to stop the free soda and lemonade bar.

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  15. Party time by halfkoreanamerican · · Score: 5, Funny

    "Google has just won first place in a wet t-shirt contest" was all I read. I don't think that was even written anywhere.

  16. Toilets != grey water by oneiros27 · · Score: 4, Informative

    What comes from toilets is 'black water', but 'grey water'. Grey comes from showers, washing machines, etc. It's specifically that which has been used, but has a low risk of pathogens in it.

    From the article, it sounds like they're using a blend of the two ... but they never linked to the March 15th Jim Brown blog post. From reading his blog, he states, "We worked with the WSA to build a side-stream plant about five miles west of our data center that diverts up to 30 percent of the water that would have gone back into the river", while the article linked to states "about 30 percent of the water is diverted from the WSA system".

    The article makes it sound like they're getting the water *before* it would have been cleaned by the water treatment plant ... from the blog post, I'd say it's after it's been treated, and getting it before it would have been sent back to the river. So it's treated wastewater, which would've already gone through some sort of system to remove pathogens.

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  17. Re:Network congestion... by SuricouRaven · · Score: 2

    I think that's error 002.

  18. "Gray" vs "Black" water by swillden · · Score: 3, Informative

    Usually "gray" water is water from showers, sinks, etc. -- everything but toilets. Water from toilets, including human wastes, is called "black" water. Some systems keep these separate, although most municipal systems (including, it appears, Douglas County, Georgia) mix them together. So this water starts out as "black", but according to TFA, it's partially cleaned up before being sent to the data center. Apparently it's treated enough to be called "gray", but still isn't potable. Then Google finishes the water treatment and releases the result into the river which is where it would have gone after the county treatment center anyway.

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  19. Firewalls by Kupfernigk · · Score: 3, Insightful
    My experience of firewalls and water treatment is this: that water treatment is designed and operated by some extremely professional people who know exactly what they are doing, and that this is not often the case for firewalls. Given how some firewalls are configured, the water treatment analogy would be to stop most things and restrict the flow of the water, while letting the really nasty bugs through.

    OT but possibly of interest: the daughter of a friend of ours studied environmental biology at university. Her mother wondered what use it could possibly be. As a researcher into water treatment, she is now into her second paid postgraduate placement with the prospect of a very well paid international job at the end of it. Oil may be sexier, but water is actually the more important resource.

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    1. Re:Firewalls by Lumpy · · Score: 2

      "My experience of firewalls and water treatment is this: that water treatment is designed and operated by some extremely professional people who know exactly what they are doing, and that this is not often the case for firewalls. "

      I used to work in the world of Water Treatment. No, they are not "extremely professional people who know exactly what they are doing" I was one of those guys for over 7 years. Many times we just would crank in more Chlorine or Alum to see if it worked.

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  20. sounds like a really crappy idea by goffster · · Score: 2

    Garbage in, Garbage out?

  21. Re:I Pee... by Anonymous Coward · · Score: 2, Funny

    I cool my servers with the frost piss

  22. Overheat by Oswald+McWeany · · Score: 2

    Let me guess.

    The servers are all going to overheat on Seis de Mayo. All the spicy food the day before will be warming up the cooling water.

    --
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  23. It's fine... by Certhas · · Score: 4, Funny

    until the shit hits the fan...

  24. It's not greywater. Read the danged article. by Anonymous Coward · · Score: 2, Informative

    They're not using greywater. Greywater is untreated non-human-waste water, like from sinks and showers. Google is using the water which has already been treated by the waste water treatment plant and would otherwise be delivered back to a river. It's not pure enough to drink, but it isn't bathwater. It's purity is somewhere in between tap water and river water, with almost zero "floaties".

    But yay poop jokes. Who knew /. had so many 4th graders?

  25. Re:Shit by fifedrum · · Score: 4, Informative

    grey water does not have toilet water in it, that's called black water, and should be completely different from grey water.

  26. Grey water is under utilized, even in the home by thesandbender · · Score: 4, Informative

    My g/f's from Japan and when we went to visit recently I noticed a lot of homes had toilets with a sink built into the top of the toilet tank. When you flushed, the water to fill the tank came out a faucet and you could wash your hands with it. Not only recycles but saves room in a 1/2 bath... a simple little thing we should see more of here in the states. As an example...

  27. Flush the queue! by circletimessquare · · Score: 2

    Flush the queue!

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  28. Re:Shit by MightyYar · · Score: 5, Informative

    The summary (and Google) are being misleading here. This is treated sewage that would have been otherwise dumped in the local river - thus it is almost drinkable, and almost certainly cleaner than the river water itself. "Greywater" usually describes untreated sewage from non-toilet sources (showers, sinks, dishwashers, clothes washers).

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  29. Re:Shit by busyqth · · Score: 2

    Correct, but the somewhat interesting part is that Google built their own wastewater treatment plant to supply the data center with coolant.

  30. Crap by digitalsolo · · Score: 2

    Sounds like a pretty crappy design to me.

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  31. Re:Good. by afidel · · Score: 2

    Um, why? Why would you want to intentionally contaminate a water source? Besides being all kinds of illegal (federal crime under the clean water act for starters, if not seen as terrorism for messing with a water treatment plant), it's also highly unethical. Google is trying to be a good environmental citizen by making use of grey water instead of requiring fully treated water which requires significantly more energy and chemical usage, what possible reason could you have for trying to dissuade this behavior?

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  32. Re:Shit by fnj · · Score: 2

    It makes me feel like quite erroneously I've done something for the environment.

    FTFY.

  33. Re:Shit by Anonymous Coward · · Score: 2, Insightful

    Clothes washers are somewhere between grey and black.

    Fun experiment:

    Create a color gradient between "grey" and "black". Then pick a color in between them. What would you call this new color?

    Does the metaphor of "grey water" make more sense now?

  34. Re:Shit by busyqth · · Score: 2

    Other articles have reported that Google built a primary treatment plant to supply the data center as well. For example: http://arstechnica.com/tech-policy/news/2012/03/google-flushes-heat-from-data-center-with-toilet-water.ars

  35. Re:Shit by busyqth · · Score: 2

    I might have increased my carbon footprint a little bit by doing that, but I offset it by using a gas grill instead of charcoal, so i'm carbon neutral.

  36. Re:Shit by Monoman · · Score: 4, Informative

    Greywater is wastewater generated from domestic activities such as laundry, dishwashing, and bathing, which can be recycled on-site for uses such as landscape irrigation and constructed wetlands. Greywater differs from water from the toilets which is designated sewage or blackwater to indicate it contains human waste.Source: http://en.wikipedia.org/wiki/Greywater

    Reclaimed water or recycled water, is former wastewater (sewage) that is treated to remove solids and certain impurities, and used in sustainable landscaping irrigation or to recharge groundwater aquifers. The purpose of these processes is sustainability and water conservation, rather than discharging the treated water to surface waters such as rivers and oceans. Source: http://en.wikipedia.org/wiki/Reclaimed_water

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  37. Re:Shit by Ihmhi · · Score: 2

    The shower water could have been redirected to flush the toilets (which is a common use for grey water), and he may be exceedingly poor at communicating this fact. Alternatively, he may be a complete moron.

  38. Re:Shit by garrettg84 · · Score: 2

    I agree, it is usually the FEELING that matters when it comes to these sort of things. This is the same reason people still buy Prii (plural of prius http://www.engadget.com/2011/02/21/toyota-decrees-the-plural-of-prius-is-prii-your-latin-teach/).

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  39. Job opprotunity! by Gription · · Score: 3, Funny

    Facts don't matter. It's the feeling that matters.

    I think you are perfect for a career opportunity with the TSA!!!

  40. Re:Shit by yodleboy · · Score: 2

    It depends on the plant. I don't have one of these systems, although I had a neighbor with one. He didn't seem to have issues. Here's an article that talks about gray water and plants: How does detergent in gray water affect landscape plants? While i was looking for that on I also found another that goes into local water codes in DFW area that pertain: City rules on gray water around Dallas-Fort Worth Obviously, YMMV, but gives an idea of some of the regulations.

    I can't really see retrofitting something like this being very cost effective unless you garden in Arizona.