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  1. #1
    CCBW Stumpy's Avatar
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    Perimeter misting install

    I just added a full perimeter misting system for our underneath living hang out area. I am using 2um hole size in the nozzles. My wife and I decided with the hot season coming this will definitely keep it much cooler plus an additional benefit as some mentioned is that if we should get into a high particle count air condition this will reduce it from coming under the house where we hang out. Originally we were going to get a Master Cool fan set up but they were quite pricey and if you wear glasses it will just fog them up (My wife and FIL wear glasses) and I did not want mist blowing on me all the time.





    The entire set up was about 3200 bht and took about half a day to install around the outside. I ran the pick up into our water holding tank which is pre-filtered so it will be clean water all the time. I did not want to put it in a bucket as I did not want to have to remember the water. This way it has a full time water supply.

    At this point It works pretty darn good. The test will be in summer when its hot.

  2. #2
    I'm in Jail

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    Nice idea, did it come a a complete kit? any idea what the water use / hr is

  3. #3
    Thailand Expat Fondles's Avatar
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    Noticed this sorta set up at the toll booth on my way home from work, I wondered what it was for... I assumed to combat vehicle fumes.

  4. #4
    CCBW Stumpy's Avatar
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    Quote Originally Posted by NamPikToot View Post
    did it come a a complete kit? any idea what the water use / hr is
    NPT, Yes there are complete kits available. My wife found it on FB through her friends group which I guess a few had bought and liked the results. I have not calculated water usage but a 2um nozzle hole is extremely small. I installed the 100 nozzles 60cm apart. The kit we ordered was based on the area I wanted to cover.

    Quote Originally Posted by Fondles View Post
    I wondered what it was for... I assumed to combat vehicle fumes.
    Apparently they do have a duel benefit for reducing heat and keeping fumes and particles down. I cannot validate the particle count reduction benefit however I can confirm a significantly cooler temp as I ran it and stood outside the mist in the sun then went underneath behind it in the sun and it was noticeably cooler. Of course a breeze will affect its performance.

    Overall at this juncture I think this is a good bang for the buck to combat the heat. You only turn it on when you need it which is nice. I wouldn't recommend using dirty or well water as the nozzle orifice is very small and could plug easily. It does come with a 1um water pick up filter but if you use dirty water soon the filter would plug up.

    Few more pics





    Line to water tank. I drilled a small hole in the top and put a rubber grommet so the line stays nice tight and will not let dirt creep into the tank.

  5. #5
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    Mendip's Avatar
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    Misting systems were installed beneath the footbridges across Mittraparp Road through central Korat last year, during the hot season. I guess that was all about reducing the dust/smoke/smog from the air as reducing temperature on such a big scale would be impossible.

  6. #6
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    I first noticed these things while working in Phoenix and always thought what a massive waste of water this is, especially in a place like Arizona . . . but in the tropics is seems less of an issue.

    Similar to what you find in the villages where people place hoses on their (tin) roofs to cool them down, I guess.

    Looks good and comfy, too

  7. #7
    CCBW Stumpy's Avatar
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    We will see how it holds up and works. I will give some feedback once the hot season is here.

  8. #8
    Thailand Expat lom's Avatar
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    Quote Originally Posted by JPPR2 View Post
    2um nozzle
    Is that right and not off by a tenfold or even a hundredfold? Considering humain hair is between 20um and 150um.

  9. #9
    CCBW Stumpy's Avatar
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    Quote Originally Posted by lom View Post
    Is that right and not off by a tenfold or even a hundredfold? Considering humain hair is between 20um and 150um.
    Apologies. I was zipping along and missed the "." The website states 0.2um.

    Cheers

  10. #10
    Thailand Expat VocalNeal's Avatar
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    If it were me I would put a filter on the inlet even though you have cleaen water supply. That being said maybe the pump has an integral filter.

    Easier to clean the filter than change to nozzles.

  11. #11
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    I'm keen to hear how this goes in the hot weather. Thanks for posting JPPR2.

  12. #12
    Thailand Expat OhOh's Avatar
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    Is the water pressurised by your house supply pump or is it a separate one?

    Did you drill all the holes or do you have a 'nail gun"?

  13. #13
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    Quote Originally Posted by panama hat View Post
    I first noticed these things while working in Phoenix and always thought what a massive waste of water this is, especially in a place like Arizona . . . but in the tropics is seems less of an issue.
    Any cooling effect from air flowing through the mist is greater if the humidity is low.
    So in a dry climate like Australia (and Arizona I believe) evaporative air conditioners work well but here in the tropics when it gets humid, or for that matter anywhere where it is humid, they are not worth a damn.

    If you are using an evaporative air conditioner you also need to ensure there is flow through ventilation i.e. a window open at the opposite end of the house to the air entrance into the house from the air conditioner.

    So for something like this to work really well you would need a big variance in between the dry bulb temperature and the wet bulb temperature.

  14. #14
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    ^Exactly.

  15. #15
    CCBW Stumpy's Avatar
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    Quote Originally Posted by VocalNeal View Post
    If it were me I would put a filter on the inlet
    The kit comes with an inlet filter.

    Quote Originally Posted by OhOh View Post
    Is the water pressurised by your house supply pump or is it a separate one?
    It comes with a separate small pump and I used cable clips with cement nails from Global house. Bag of 50 26bht.

    @ ootai... Now let's not over analyze this $100 attempt to give the person a feeling of being cool. 555. We will see how it goes when it's quite warm.

  16. #16
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    ^ I'll tell you how its gonna go in the 50 degree heat next month; your water bill will rise like your electric bill normally does, you will attract a shit load of insects and you are gonna be even sweatier than usual

    Looks nice though mate

  17. #17
    CCBW Stumpy's Avatar
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    Quote Originally Posted by Dillinger View Post
    ^ I'll tell you how its gonna go in the 50 degree heat next month; your water bill will rise like your electric bill normally does, you will attract a shit load of insects and you are gonna be even sweatier than usual

    Looks nice though mate


    And that is likely the outcome Dil. Of course a rising water bill means going from ~ 150 -175 bht to 225 to 250 bht. The pump is 12v going through a smaller converter so my electric bill might jump up 100 bht. That said my utility costs at our house are extremely low. I always hear of some that spend 7k bht or more and during summer that hits 10k bht. My wife tracks all ours and its 1500 to 2k avg for the year. Even during the scorching blistering inferno time it's only 2500 to 3k. I think this is due in part to us not being inside the upstairs house much and always outside or underneath doing things.

    While this was my wife's find, I do know that I have enjoyed sitting in front of a mister fan when it's super hot so this deal might work as we say "Good Enough". I went into expecting nothing so if it does anything good then it's all upside.

  18. #18
    Thailand Expat AntRobertson's Avatar
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    Interesting... Have thought of something similar for our bar / outdoor area, that's cheaper than I had expected, might have to investimigate further.

  19. #19
    Thailand Expat terry57's Avatar
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    Quote Originally Posted by ootai View Post
    Any cooling effect from air flowing through the mist is greater if the humidity is low.
    So in a dry climate like Australia (and Arizona I believe) evaporative air conditioners work well but here in the tropics when it gets humid, or for that matter anywhere where it is humid, they are not worth a damn.

    If you are using an evaporative air conditioner you also need to ensure there is flow through ventilation i.e. a window open at the opposite end of the house to the air entrance into the house from the air conditioner.

    So for something like this to work really well you would need a big variance in between the dry bulb temperature and the wet bulb temperature.
    Exactly,

    They where all the rage in Australia years ago but you rarely see one now.

    OK when it's not to Hot or humid but once the summer heat really sets in they are not worth a piss in the wind.

    Now with inverter technology not worth pissin around with that rubbish.

    I do like the misting system though. Even if for effect only.

  20. #20
    CCBW Stumpy's Avatar
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    Quote Originally Posted by terry57 View Post
    I do like the misting system though. Even if for effect only.
    Yeah it does look nice when misting... 555.

    My Aunt in law saw it and sat by it after I fired it up. She wants one. I said "wait and see if it actually helps".

  21. #21
    CCBW Stumpy's Avatar
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    Quote Originally Posted by AntRobertson View Post
    Interesting... Have thought of something similar for our bar / outdoor area, that's cheaper than I had expected, might have to investimigate further.
    I will post back on here when it starts to get hot enough to see if any benefit Ant. Around a bar could be a good thing.

    There is also a claimed ( not validated) point it will help with high air particle count as the mist would collect it. Again to me it was a wifey $100 experiment. I spend that on a good bottle of Bourbon....

  22. #22
    Thailand Expat AntRobertson's Avatar
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    Quote Originally Posted by JPPR2
    There is also a claimed ( not validated) point it will help with high air particle count as the mist would collect it.
    Particularly interested in that part. Would be good if true.

    Quote Originally Posted by JPPR2
    Again to me it was a wifey $100 experiment. I spend that on a good bottle of Bourbon....
    Can't hurt then... the $100 experiement that is, a bottle of Bourbon sure can hurt!

  23. #23
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    Its all fun until that mist gets into one of your Somchai-fitted unearthed powerpoints

  24. #24
    CCBW Stumpy's Avatar
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    Quote Originally Posted by Dillinger View Post
    Its all fun until that mist gets into one of your Somchai-fitted unearthed powerpoints
    Yeah....electrocute everyone. A man with a plan, group killing..

    Again....planning though Dil. All my power is up high and fully grounded. You may ask how I know...? Well I personally sank the 4 ft 1" diameter copper rods into the ground myself and made sure the main ground was bolted to the rod not "Thai wrapped with tape" like I have seen .
    All wiring is 3 wire with ground to safety breaker. It was one of my big deals when building the house because I had seen some wiring deals which explains the on and off electrocuted person in the shower around this country.

  25. #25
    I'm in Jail

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    All good Japper but i'd check Somchai the Leccy has actually connected the earth in the sockets.

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