06-11-2009, 02:07 AM
Awesome video on the technical side of pumping and how it works. Yes it's about brava, but I would think this would apply regardless of which device you choose.
http://www.youtube.com/watch?v=Rz6EcQKu8gQ&feature=related
http://www.youtube.com/watch?v=Rz6EcQKu8gQ&feature=related