getting rid of hammer

Discussion in 'Irrigation / Sprinkler Forum' started by v1rtu0s1ty, Aug 24, 2009.

  1. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
    I built a homebrew automated sprinkler system with the use orbit 3/4" sprinkler valves and garden hoses. It's just connected to the spigot outside. That means, it's temporary and I will have to remove it in winter. It's working pretty well.

    However, eventhough it's temporary, I would like to address an issue that I am experiencing. There are times when it turns off, I will hear a loud hammer on the pipes. About 85%, it happens. Are there any ways to prevent it without putting a hammer arrestor? I'm looking for a temporary solution if there are any.

    http://i303.photobucket.com/albums/nn134/s1mpl3k1d/LawnRenovation2009/lawnsprinklervalves20090814.jpg

    Thanks!

    Neil
  2. upper

    upper DIY Senior Member

    Messages:
    154
    Location:
    Fresno, CA
    What type of valves.And how is it piped between the valve and the faucet? Upper
  3. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,412
    Location:
    Bothell, Washington
    The easiest fix would be to remove the brass hose bib with galvanized coupling,
    Replace the coupling with a threaded tee, and insert a threaded hammer arrestor in one side of the tee.

    Attached Files:

    Last edited: Aug 25, 2009
  5. tomm

    tomm New Member

    Messages:
    41
    what/how many heads are connected at the end of the hoses? how long are the hoses? what is the pressure?
    Last edited: Aug 26, 2009
  6. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
    That's a very cool idea! I'm going to print out my picture and bring it to the store. Thank you so much!!! :D
  7. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
    1st valve - one oscillating sprinkler
    2nd valve - one oscillating sprinkler
    3rd valve - 3 impact sprinklers

    The garden hoses pipe lengths are somewhere 60ft long per.

    I think the length of the garden hose doesn't matter. It's because, the hammer happens before the sprinkler valve.
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