Upon my arrival I evaluated 1 heat pump 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 indoor heat exchanger and the airflow distribution system covered in debris. Recommended a cleaning but the customer chose to have the quotes emailed to him at this time. I also installed the iflo device, and accepted payment for it. I installed the iflo into the primary drain line, Kevin wanted it installed so that it injects into the primary drain pan but due to the thickness of the front panel the elbow fitting that comes with the iflo device is too short. I’ll check if we can do something about this. I did advise him that the cleaning of the indoor unit will help prevent drain line clogs.