Did A/C tune-up, found system not cooling correctly with low Freon, supply air 72, return 77, added 1 lb to balance superheat, changed 16/25/1 filter, checked drain line, also need new blower capacitor and blower wheel cleaning, system is 19 y/o and needs replacement but the client is not ready for upgrade. Checked ac components, no water to clean the outdoor coil. Add charge