Arrived on site to perform work as proposed. Shut off water to the building at the 6†ball valve in the utility room. Drained the system down out of the drain down pipe that tee’s off near the main water shut-off. Cut out about a foot of the 1†copper with the old valve on it. Soldered in a new quarter turn ball valve. Previous leak was coming from a street 45 but it was piped fitting to fitting. Removed the cold shut-off and installed a new one in room 103 at the lavatory sink. Removed and replaced the shut-off for the toilet in room 204. Turned water back on and checked for leaks at the new soldered joints and valve. No leaks detected. Installed a new supply line at the toilet due to the previous one being clogged. Relieved air from the building at the third floor bathrooms. Checked for leaks again, no leaks detected. Thank you for choosing CPI!