[hypoxia]

I had thought I could suck the oil out of the Jun-Air through the top "fill" hole but was unable to get a suction line in, upon removing the top of the case I could see why.  There's no space for a drain tube.  Just as well since most of the contamination had settled to the bottom and didn't come out until the compressor was upside down.  There was also a small piece of vinyl or plastic that came out with the oil.  Notice the springs on the case that the motor hangs from to isolate vibration.  When turning it upside down you have to hold on to the motor to keep it from falling out.