I have programmed pgm A, station 1 to start at 6 PM and run for 45 min and station 2 to start at 6:45 PM and run for 45 min. When sta 2 completes, station 1 starts running again but all stop when sta 1 runs for another 45 min. HOw do I stop it?

Garden - Orbit - 6 Station Indoor Dual Program Irrigation Sprinkler Timer -...