Overhauled Baltimore Aircoil Company BAC 3000 cooling tower. Replaced deteriorated fill media with new BAC CrossFlute fill. Cleaned distribution nozzles, adjusted water flow. Repaired cracked fiberglass basin, applied Belzona 5811 epoxy coating. Replaced fan motor and drive shaft. Balanced fan assembly using Fluke 810 vibration tester. Cooling tower efficiency increased by 15%.