Frigidaire: Draining water from non removable drain pan

I have a simple Frigidaire top freezer refrigerator. Every once in awhile I will hear water dripping from it and yesterday I decided to investigate more. I removed the front kick plate and found that the drain pan was full of water! It hasn’t overflowed yet, but I am concerned. Unfortunately, the drain pan is not removable (I verified this through the user’s manual). Is there a way I can remove the water from the drain pan? I was entertaining the idea of somehow sucking the water out with tubing, but I really don’t know how to do that.

the fridge i worked with can access the drain pan from the back. i would used a wet vacuum