Cycle Stop Valves

Pump System Questions and Answers => Irrigation => Topic started by: sprinklefish@comcast.net on June 27, 2012, 07:32:43 AM

Title: vibration at running pressure
Post by: sprinklefish@comcast.net 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

Title: Re: vibration at running pressure
Post by: Cary Austin 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.