View visual findings from this job here - https://Drained boiler and removed defective zone valves 3/4 inch and 1inch installed new zone valves and filled system with water purged system of air and turned system on and checked operations all systems are functional and zone valves are functioning properly tested hot water and heating zones one at a time and both together left system working .xoi.io/?id=XA-213F-C44CF589691746F3A1C5353941DBCC91 View visual findings from this job here - https://visionshare.xoi.io/?id=XA-213F-C44CF589691746F3A1C5353941DBCC91