This is directed at anyone, but I saw where NY Snow Pros uses a liquid magic tank on his truck. I'm unfamiliar with liquid de icing agents. How much would the magic cost and what type of rates is it used at? How is it used? Can liquid magic be used as a lone de icing agent (Would I need to spread granular as well?) How much would a liquid applicator cost? Where might I view one on the web? Thanks in advance.