System was frozen upon arrival. Turned water back on and used torch to melt ice in the backflow preventer. Turned on all zones with water to melt any ice in the system. We have completed a thorough winterization of your irrigation system. Please leave all irrigation shut-off valves closed to prevent re-introducing water into your system, which could cause freeze damage. If you notice any water dripping outside, or icicle formations on irrigation pipes, please call us to schedule having your shut-off valve replaced immediately. We look forward to starting up and inspecting your system in the Spring! Don’t forget to renew your annual membership, if you haven’t already! Any necessary repairs or upgrades were identified and recommendations provided. Z1. Leak under 12” spray head on riser, at driveway. Z2. 1 rotor low pressure in back near patio. Z4. Wasn’t coming on with timer. Z4. Leak at generator.