Question
I have two or three areas in my yard that are wet all the time like the valve is leaking thru - do I need to replace the valve?  I also have one station that runs but water just seeps out of the heads - what might cause this? Thanks!

Answer
You can replace it or rebuild it, but I would suggest replacing it.  Its not that much more expensive, and you have a new valve.  The other problem could be a couple of things.  First make sure that the valve is on and adjusted properly.  To adjust, open the valve all the way, then close it all the way counting the turns.  Then open it back halfway.  If this doesnt work, you may have an electrical problem.  Check all the wiring connections for the valve, at the controller and at the valve.  Make sure the wire nuts are waterproof.