changing pipe size

Discussion in 'Irrigation / Sprinkler Forum' started by v1rtu0s1ty, Jun 29, 2008.

  1. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
    Hi folks,

    If existing pipe coming from wall of house is 1/2" then we attach a 1" pipe, will there be change in GPM?

    Thanks!
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    No. You can only get the GPM which that 1/2" will deliver. However, if you have to run any distance, changing to a larger pipe size will minimize any further losses, as compared to continuing with the 1/2"
  3. v1rtu0s1ty

    v1rtu0s1ty DIY Senior Member

    Messages:
    176
    Location:
    Chicago IL
    Awesome! I didn't know about that. :)

    Thank you so much!
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