I Was just out here on Sunday and added 2 pounds of refrigerant per clients request. Client requested us to come back out today to add more refrigerant to get the home cool. Upon diagnosis of system, found system significantly low, just about as low as the last time I was out here. Strongly advised to client to either do a leak search or replace system due to age and cost of repairs. Client chose to do a leak search with dye and added 7 pounds of refrigerant. Need to return in 3 to 5 days to perform leak with black light. System is running and cooling good at this time.