Using MacBook Pro near a swimming pool - dangerous?

Discussion in 'MacBook Pro' started by Logos Delta, Dec 9, 2006.

  1. Logos Delta macrumors newbie

    Dec 9, 2006
    Hello there!

    First time posting in this forum, so please bear with me as I might be new to some things ;) It also is my first Mac but this is rather a general question.

    It made me sort of curious ... Yesterday in a German Mac forum, I asked something about a temperature issue and told the people I work at a local swimming pool in a rehab facility. Most of them didn't respond to my actual question, but rather advised me on how bad chlorine and high amounts of humidity are.

    Well, the situation is as follows: I sit in a closed room with a glas front and a built-in door (also from glas), and thus am not in direct contact with the inner air. This room is about 10 ft. away from the pool. However, most of the patients have to walk through my cabine in order to enter the changing areas. This implies that every so often the door is opened.

    Well ... when something is rather cold, after a few seconds, I can see a thin layer of humidity on certain things (a cold drink for instance, or a cooled down power supply from walking from the car to the pool (it's about 5° outside at this time)). I didn't have a chance to measure the relative humidity, but as I only use the MBP in this enclosed room, I doubt it'll be beyond the limit - or at least I hope so!

    What do you think? Is it possible - with special regard to the amount of chlorine in the air - that this might inflict minor or serious damage to the MBP in a long term perspective? Or, if everything is within the humidity range Apple states (0-90 % rel. hum., non-condensing), should there be nothing to worry about even though it's in near a swimming pool?

    General question: how humid is the air in the closer vicinity of a pool? Anyone knows?

    Thanks so far ... I apologize for throwing around so many questions.

    Best regards from Germany,
  2. dops7107 macrumors 6502a


    Mar 19, 2005
    Perth, Oztrailya
    I think it's the temperature of the computer that matters. If it's warmer that the air - which it likely will be once it's been running for any more than 5 minutes - water should not condense within it. So perhaps make sure it's warm and then bring it in to your little room. I wouldn't worry too much.

    Keep it away from the edge of the pool, however!
  3. phungy macrumors 68020


    Dec 5, 2006
    I'd definitely keep it away from the pool/porch. You can never be too safe.
  4. bearbo macrumors 68000


    Jul 20, 2006
    chemistry lesson

    when chlorine (Cl2) is dissolved in water, it forms hypochlorous acid (HClO) and hydrochloric acid (HCl) to act as disinfectant. the process is called chlorination. the concentration of those two acid is very low, thus the amount that'll be evaporate into air is very minimal... and the amount that will settle on your laptop is insignificant.

    and chlorine itself is in gaseous form at room temperature, so that won't do much to your laptop (and too concentrated Cl2 gas is bad for the environment and it acts as catalyst to break down ozone, so it's not allowed anyway)

    cold drink container will natually form a layer of condensation because water holding capacity of air decreases as temperature decrease... so say relative humidity(RH) of air at room temperature is 50% at one point, but at 0 deg C, it could be way over 100%, which is what's causing the condensation... however your laptop will be at at least room temp (or given the extra hot MBP, it'd be way more than that) so that you dont have to worry about... unless it's one of those summer day that's ridiculously humid , that you'd feel uncomfortable, then perhaps it might have affect on your mbp, but generally speaking normal outside humidity won't do much to it

    that's why if you wear glasses, you come home from a cold weather outside to a warm weather inside, your glass gets foged up,because the glass is still cold, the air right next to the glass is also cold, aka won't hold as much water as the air inside.. so it condensates.

    so if your room is usually isolated from the swimming pool, i wouldn't worry about anything... avoiding splashing water on there tho... THAT won't be good
  5. buckwheat macrumors member


    Dec 4, 2006
    Yes, they can ding the liner of your pool and cause a leak.

    On another note, reports from the field are starting to trickle in. It appears that a good dunking fixes C2D displays.

    Desperate to keep his job, Steve's brother-in-law overheard this on one of his few visits to the office. He now requires all laptop screens to go through a submersion process off the back of his yacht in Monaco prior to shipment. If you're one of the lucky ones you have been shipped a "re-aligned" screen.
  6. manosaurus macrumors 6502


    Aug 22, 2006
    Not to correct you or anything but actually, what they do is first dunk each new unit twice for around 1.5 and 3.9 seconds respectively then a puppy must be sacrificed in the name of Steve Jobs then the unit is ready to be dunked into a vat containing all of the collected puppy blood since the first production line. Then, AND ONLY THEN, is your machine with its perfect LCD ready to be shipped.
  7. JAT macrumors 603

    Dec 31, 2001
    Mpls, MN
    A humidistat is pretty cheap. Available at your local discount department store or home improvement center. That might help.

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