Arrived onsite to repair leak on NTI boiler in the domestic hot water circuit. Turned off the system. Closed all valves. Purged water out of the domestic hot water circuit and the boiler heating piping. Removed gas valve. Disconnected water piping for the domestic hot water and boiler. Removed fuel supply line. Removed water pump. Removed leaking piece for the domestic hot water. Replaced leaking part. Rewatched water pump and fuel delivery system. Connected all electronics. Filled the piping and confirmed no leaks. Started the system and confirmed operation and no leaks.
