How does the Rachio determine my soil type by my address?
It’s a very loose guestimate based on region. This article can help you narrow it down.
I live in Houston, Texas, based on my zipcode, Rachio could conclude my dominant soil type is clay (it is called gumbo here)… That would not account for lawns or flower beds that have been heavily ammended with sand, compost, etc.
Over the decades, the US has conducted a national soil survey that has identified the soil types for the entire country. It is pretty accurate other than if you are on a boundary area where it is less precise.Other countries may have something similar. Maybe Rachio accesses this database.