Returned to replace the relief valve that still had a slow drip. Drained the tank low enough to remove old relief valve. Installed the new relief valve. Filled the tank back up to full and purged the air from the pipes. Turned the heat back on so that it gets back to customer preferred water temperature. Made sure the new valve wasn’t leak. Removed the water from the overflow pan. Water heater is operating properly with no leaks at this time.