That's sort of what I was thinking. But then I also thought that if I did an extra rinse with some kind of pure water I should also rinse the felt pads (or lips) on my machine too. But then that's getting a little too anal for me. I might try an extra rinse with distiller water and see if I notice a difference. Cheap enough experiment.
By the way, that "air dry" problem is exactly what Keith Monks said he did not like about the new ultrasonic record cleaning machines. He said that the ultrasonic machines do a very good job at cleaning the record, but not at removing the liquid from the record. He convinced me that there would still be stuff left on the record from the blow drying method. Of course, he sells a different kind of machine so obviously he will have a different opinion about what is best.
I personally believe that there is really only so much you can do to make a record quiet. I would like to be proven wrong about that. I mean I really do want to be wrong and discover the magic trick.