Ive been participating in various plumbing threads for biz reasons. Thought I'd start a thread where we could post the inane posts found elsewhere. I'm new to this business of automated sprinkler systems and am seeking some advice on my home system. I have nine zones in place that are watered by a submersible pump in my yard well. I have always manually changed to the different zones by hooking up the different hoses and then turning on/off my pump to get the job done. I'd like to automate so that when I'm away, the yard and garden still get watered. I realize I'll have to set up a box with at least nine solenoid valves with a timer to control them. I plan to have the box at ground level so I can disconnect water and power at the end of the watering season and move the unit indoors to prevent freezing damage. Here are my concerns: 1. How do I coordinate the turning on/off of the pump(220 volt) with the control timer? 2. Can the pump be running as I change from one zone to another without damaging the pump? 3. Can you recommend a good control timer to handle this situation?