If you never clean the drain line for your air conditioner, then you are entirely going to come to a time when your air conditioner will freeze up, and a backed up drain line can cause a lot of concerns, green algae can begin to form inside the drain line if the line is never cleaned, when I was living in my first apartment, I had a big leak, then i came apartment from toil plus took off my shoes by the front door. I started walking over to the dining room plus I felt my foot get wet in the hall. All of the carpet in the hallway was completely soaked with water. I called the cabin maintenance staff plus told them about the wet carpet… They told myself and others that the AC was entirely leaking plus they would call the repair supplier. The AC repair supplier was there in less than an minute plus they split away the carpet plus the padding so they could dry the area. They also used a unit to suck out all of the dirt, debris, plus algae from the drain line. They told myself and others to wait an minute before I turn the AC component back to cooling. The sound of the blower that dried the carpet was horrendous plus I was awake all evening long. Thankfully, the carpet plus carpet padding was dry in a few days. After that problem, I tried to find apartments that did not have any carpeted areas… Even though the area dried suddenly, the smell of old, musty water never left the apartment.