Service call no cool Upon arrival, homeowner explained that he had already vacuumed his own drain line. Restarting the system. Check drain line found visible bacterial growth and build up. Inspected evaporator coil which is clean. Evaporator coil pan is also clean. Recommended drain solve or iFlo. Homeowner decided to move forward with drain solve treatment. Plugged outdoor drain line added 2 cups of drain solve. Allowed 20 minutes for product to work. Removed plug and flush drain line with Water.