How Do You Program a Pause Between Zones

I have a 5-zone irrigation system that uses a well as the water source. Unfortunately it is shallow and can only run six minutes before water needs to be replenished. How do I program a 20-minute pause time between zones to allow for water to replenish in the well? Alternately, what other scheduling options are available that can achieve the same result?

@LeisurePaul I don’t know if the link below applies to your situation, but it sounds as if it might be what you are looking for.