Twelve stations total. One station, around the middle of the pack will not turn off. I shut off the main valve. I have removed the batteries and disconnected the controller panel for while, to see if it maybe needs to re-set. Which is probably wrong. If I have a stuck valve, I was wondering if anyone may have a video to show me exactly what to look for and to replace. If this does not sound like the problem, any ideas or help is greatly appreciated. Thanks