Thanks for sharing your setup. We have a sod farm and are looking to control several hundred sprinkler solenoids (24Vac). Can you explain, how does it work to have “one centrally placed open sprinkler in the office that controls the others”? Is there documentation on how to do this – setup multiple opensprinklers with one as the master? It seems like this would be a workaround for the 72 station limit in version 2.1.8?
And, can you explain a bit more about “used the relays, thanks to them the open sprinkler is not overloaded.” Is this a workaround for the transformer having a limit to how many 24vac solenoids it can operate at one time?