Rachio 3 and Australia - illegal!

A warning to other users: the adapter that Loren linked is NOT suitable for Rachio. Rachio requires an AC-AC adapter. What Loren linked is AC-DC and will cause issues with your Solenoids (I learnt the hard way).

Refer to this thread:

In Australia, searching Google for “AC2410” should get you what you want. Here are some I found (yet to receive one to verify):

Indeed. It is VERY IMPORTANT to be using a 24v AC psu and NOT a 24v DC psu