Arrived in Smithville for AC Repair, Upon my arrival I evaluated 1 package furnace system and 1 heat pump split system. I verified system safety and performance is to manufacture specifications. Flushed and treated the water removal system. Cleaned the electrical cabinet and washed unit using water. Found the upstairs system to be low on refrigerant. Recommended adding refrigerant to the system to bring the pressures to manufacture specifications. Customer approved over the phone to add refrigerant to the system today. System took 2 pounds to bring to proper calibration and found no signs of any leaks today. r