Restarting the irrigation system

It's threatening to freeze outside, and the radio says that plants survive a freeze better if the ground is wet.  Our city-allowed day to water is coming up (Saturday), so it might be best to water before the freeze.  Unfortunately, when we had the water line electrical wires extended, the wires may have been mixed up, so we need to determine which wire controls which zone.

This is time-consuming, but not difficult.  We turn on a zone at the controller in the garage, and then walk around to see what zone is actually running. We do this for each zone, until we have a complete mapping from the old zone numbers to the new zone numbers.

Old	New
1	1
2	2
3	3
4	9
5	8
6	7
7	10
8	5
9	4
10	6
11	11

Once we have this table, we can see that to restore the controller to its previous zone definition, we need to

• Switch the wires for 4 and 9
• Switch the wires for 5 and 8
• Move the wire from 6 to 7, the wire from 7 to 10, and 10 back to 6.

With these changes, we now have a working controller, with all the zones the same as before, and we can water.