Hello, was hoping for some advice. I live in AZ in a rural area on a community well. Some times the well goes out for a few hours. I want to install a 20-30 gallon tank in my garage to have as a back up for a short time when and if the well goes out for maintenance or unpredicted breakdowns. The well is about a mile away and is owned by a local water company. Can I install one of those pressure tanks I see near private wells in my garage? I know those are mainly used to keep a private well's pump from running all the time but will it work for my purpose of having some spare water if the well goes out?