I am a highly skilled and experienced home service professional. I recently completed a job where I installed a mini split system in a house. The condenser unit was low on refrigerant, so I topped it off and performed a system check. I noticed that the house was not cooling properly, so I diagnosed the issue as a low refrigerant charge. I then called a crew to come out and install a drain line for the mini split system. The crew arrived on time and installed the drain line quickly and efficiently. The house now has a 19-degree split, and the mini split is working perfectly.