Author Topic: vibration at running pressure  (Read 4617 times)

sprinklefish@comcast.net

  • Newbie
  • *
  • Posts: 1
    • View Profile
vibration at running pressure
« on: June 27, 2012, 07:32:43 AM »
The cycle valve starts to vibrate slightly at first, as pressure goes up the vibration gets worse.  Is there air in the main line

Cary Austin

  • Inventor, Owner, Chief Cook and Bottle Washer
  • Administrator
  • Newbie
  • *****
  • Posts: 1586
    • View Profile
    • http://www.cyclestopvalves.com
Re: vibration at running pressure
« Reply #1 on: June 27, 2012, 11:59:57 AM »
If it is a 2" or larger valve, there maybe air in the top chamber.  You can loosen the top plug to let the air out.  Air in the mainline will cause a slower pulsing, not really a vibration.