Question
I have a Rainbird ESP-LX+ when I am running my stations my station 1 stays on while all other stations run.  This causes my pressure to be lower while watering.  What can I do to fix this.  It hasn't always run this way.  I do have a few heads that are busted that need to be replaced?  Would that cause that?

Answer
It is most likely a problem with the control valve for that station.  Locate the valve, and first try adjusting it by turning the flow control all the way off, then all the way open, then close it halfway.  If this doesnt help, turn off the water to the system and remove the top of the valve and carefully clean the internal parts.  Check the diaphragm for holes or tears and replace if you find some.  Reassemble the valve and hopefully it will work.