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  1. #1
    Join Date
    Apr 2011
    Location
    Southern Indiana
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    Why are some reasons why a Cooling Tower would overflow?

    Looking for common reasons.

  2. #2
    Join Date
    Dec 2014
    Location
    New Mexico
    Posts
    758
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    The float is not working correctly.
    Water pressure to valve is too high and pushing past seat, seat is just gone.
    Float ball leaking and can’t float anymore.
    Level set to high for the pull down level , when pump stops all the water in media drains down causing overflow.
    Float rods damaged.
    Somebody put on too small a ball for the size of valve , water pressure too much for shut off pressure.


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  3. #3
    Join Date
    Apr 2011
    Location
    Southern Indiana
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    34
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    Thread Starter
    As far as from the top of the tower? I know plugged nozzles would do it. Just looking for common indications.

  4. #4
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    17,939
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    It's not tall enough to hold all the water.
    This forum requires that you wait 20 seconds between posts. Please try again in 50 seconds.

    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"

    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  5. #5
    Join Date
    Jun 2010
    Location
    U.A. (upper Alabama)
    Posts
    1,131
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    Could be a number of things. Have you got up there to see if the hot basin nozzles are are plugged with rust or any other debris? If not they could actually be sized wrong. It happens and I’ve seen it multiple times. The balancing valves could be set wrong also.


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  6. #6
    Join Date
    Jan 2008
    Location
    Phoenix Arizona
    Posts
    1,574
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    Pump check valve being bad could cause it also.

  7. #7
    Join Date
    Dec 2014
    Location
    New Mexico
    Posts
    758
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    Pumps being too big or tower too small.
    Somebody sized the head on pumps a little excessive and it just fills the hot basin.
    We have a building with that problem engineering sized the pumps to be five stories up but ended up at basement level next to the chillers and forgot to change the tower pump head. So of course the towers and chillers were blamed, ran for a couple of years with water going to both cells to control over flow. Finally agreed he was wrong and but VFDs on tower pumps.
    Long story short there is a lot things to cause over flow.


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  8. #8
    Join Date
    Mar 2016
    Location
    Marengo, IL
    Posts
    12
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    Nozzles and GPM to tower.

  9. #9
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,895
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    Quote Originally Posted by HVAC_Marc View Post
    It's not tall enough to hold all the water.
    Or because theres too much water in it .
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage and yes it still gives me goosebumps
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    In the new big shop , greasin', oilin' . tweakin' n shinin' !!

  10. Likes HVAC_Marc liked this post
  11. #10
    Join Date
    Mar 2004
    Location
    ottawa canada
    Posts
    2,895
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    someone adjusted the sides of the basin to low
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage and yes it still gives me goosebumps
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    In the new big shop , greasin', oilin' . tweakin' n shinin' !!

  12. Likes HVAC_Marc liked this post

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