I’m closer but still not Kewpie doll…
The command “water all stations works”
The Google Home routines command “Ask orbit bhyve water zone five for fifteen minutes” results in “Sorry you asked to water station five but your timer only has zero stations, you can ask…”
This is, as it turns out, not a problem with Google Home routines at all, as when I run the same command verbally I get the exact same result.
The verbal command to: “ask orbit bhyve water all stations” does work, as I imagine would any of the many “water all station” variants.