Called out today due to no cooling. Upon arrival client stated that the system has not been cooling for two days. I checked refrigerant pressures. System is extremely low on R22 refrigerant. Client is fully aware that R22 is no longer manufactured. Explained to client about the process of finding a leak and the potential cost of repairs. Client is a general contractor and has friends that do HVAC. He is not interested in speaking with a comfort advisor but just wanted me to check refrigerant pressures. System is in the same condition as arrival. Thank you for always choosing Total Air