So I finally figured out I had to remove the “to” in my phrase to get it to work.
“Hey Google, ask Rachio water front yard” instead of “Hey Google, ask Rachio to water front yard”. GH thought I was trying to send a message with the latter.
Can Rachio please remove the “…ask Rachio”, “…tell Rachio” words from the command phrase? I only have one Rachio and sprinkler system. I’ve had IFTTT working with Rachio and GH to where I can just say “Hey Google, water front yard”. I’ve used the “ask/tell” phrase for other GH services and it gets annoying real fast with those additional keywords.