So help me understand. I top off my tires with air out of my 33 gallon Sears compressor. I thought compressing air pulled moisture out. Isn't that why I have to open my drain plug and empty the water out of the tank every so often? Wouldn't the air in the compressor have less moisture than uncompressed air? What is the harm of moisture in a tire anyway as long as it doesn't condense and pool?