Fog: Fog Distribution in Yard
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  1. #1
    Join Date
    Oct 2017
    Location
    Missouri
    Posts
    25

    Default Fog Distribution in Yard

    I know this topic has been beaten to death.....but I am trying to do something slightly different. Maybe some of you with extensive knowledge on airflow and pipe sizing may help.
    I have a chauvet 1600 fogger, plenty of fog, and good velocity coming out.

    I would like to create a grid system in the yard for the for machine, preferably 1" pipe at the biggest. Last year I used a chiller with 4" pipe snaked through the yard and worked great, but I hate the look of large pipe running around.

    Would using 1" pipe over a grid system be too small of pipe? Or does it just matter on the total capacity of the pipe? Say 10' of 4" is equal to 40' of 1"? or not that simple. I guess I could do trial and error but that's a lot of money to blow on pipe if I don't need to. Looking at doing a 50'x25' area. I would like the effect of fog seeping out of the ground everywhere, more "mysterious".

    Long post, thanks for your time!

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  3. #2
    Join Date
    Sep 2012
    Location
    Austin, TX
    Posts
    144

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    The resistance to air flow in the 1" or smaller pipe will be much greater than that of a 4" pipe. Just try breathing through a 1" pipe vs breathing through a drinking straw and you will see what I am talking about. The longer the pipe the more resistance and any bends in the pipe will also make it worse. A possible solution would be to run a large pipe down the middle of the area with smaller pipes branching off. This is essentially how ventilation systems in buildings are designed. However, not sure if that would be any more attractive than one large pipe snaking through your yard. Maybe the best thing you can do is ask other forum members for clever ideas on how to camouflage the big pipe.

  4. #3
    Join Date
    Oct 2017
    Location
    Missouri
    Posts
    25

    Default

    Quote Originally Posted by JW Halloween View Post
    The resistance to air flow in the 1" or smaller pipe will be much greater than that of a 4" pipe. Just try breathing through a 1" pipe vs breathing through a drinking straw and you will see what I am talking about. The longer the pipe the more resistance and any bends in the pipe will also make it worse. A possible solution would be to run a large pipe down the middle of the area with smaller pipes branching off. This is essentially how ventilation systems in buildings are designed. However, not sure if that would be any more attractive than one large pipe snaking through your yard. Maybe the best thing you can do is ask other forum members for clever ideas on how to camouflage the big pipe.
    I'll just paint it camo so it will never be seen haha, but maybe some others can chime in. Maybe I'll get real crazy and bury a main center pipe

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  6. #4
    Join Date
    Feb 2011
    Location
    Fort Walton Beach, Florida
    Posts
    249

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    I have used 2" pipe for fog and it works ok for short runs. For a large area you'll want larger pipe and maybe even a fan to assist with the flow. If you had a drainage problem in the yard you could accomplish two things at once. Something to think about....

  7. #5

    Default

    Fog Distribution in Yard
    This is a fun video that goes through Hollywood Haunter's fog distribution from a few years ago. It's basically what JW mentioned, with smaller PVC coming off of a larger 4" flexible tubing.


  8. #6

    Default

    Yes, 1" diameter pipe is too restrictive. What will happen is most of the fog will come out of the holes nearest the fog machine, then nothing out of the holes further away. Even my 4" perforated pipe is only good for a 50 ft length. I don't think you really need a grid system either, a pipe around the perimeter works well on my yard, even with wind blowing.

  9. #7
    Join Date
    Aug 2016
    Location
    Shallow Grave Cemetery
    Posts
    147

    Default

    Quote Originally Posted by JW Halloween View Post
    The resistance to air flow in the 1" or smaller pipe will be much greater than that of a 4" pipe. Just try breathing through a 1" pipe vs breathing through a drinking straw and you will see what I am talking about. The longer the pipe the more resistance and any bends in the pipe will also make it worse. A possible solution would be to run a large pipe down the middle of the area with smaller pipes branching off. This is essentially how ventilation systems in buildings are designed. However, not sure if that would be any more attractive than one large pipe snaking through your yard. Maybe the best thing you can do is ask other forum members for clever ideas on how to camouflage the big pipe.
    I use landscape burlap to cover my pipe. The burlap will naturally camouflage the pipe, allow the fog to filter through, and if you wet the burlap it will help the fog stay low to the ground, If necessary you could also use mulch over the burlap to help further conceal the pipe,

  10. #8

    Default

    Fog Distribution in Yard
    I've also found that the fog condenses more in smaller tubes because it doesn't have much area to move. Lots of contact with the colder pipe, etc.

    I had a big *** flex tube running in my yard and I didn't like it either. I went a different route and built my foggers into a central crypt prop. (Not sure if this works with your setup or not)


  11. #9
    Join Date
    Nov 2009
    Location
    Decatur, Illinois
    Posts
    337

    Default

    I went the same route on mine. I did not like the tubing so I made a Crypt chiller.
    My love, sweet Queen and noble wife. I alone remain to bring delivery of your pain. Severed my darling, too quickly from this life. Of fires drawn and memories met, I shall hold our two hearts again in single time.

  12. #10

    Default

    I use a 1 inch grid system with aqua blocks stationed around the yard as chillers. They are super easy to fill and keep the fog super low. I drill a few holes in the pipe here and there to allow some seepage. The main output is left alone. I have 4 blocks and a 1600watt fog machine, works great.

    I let my grass grow in the areas where the grid is going to hide the pipe. For those unfamiliar with aqua blocks they are typically used for water for weight to keep the edges of your pool cover down in the winter. Pipe enters one end and goes out the other. The benefits are great because you can change its direction or even shoot the fog through all 4 blocks until you output in one main area.

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