abrasive

I see over Northern Tool they got an attachment lets you use a sand media with your PW, anyone tried one of these and had any luck??? I love that baking soda link who'd a thought??? but the same principle is use on a sand attachment on a PW, anybody use one yet???? thnks red423

Hello Guy's. I wanna buy one of these to clean paint of my bikes. They have 3 to choose from. A 20#, 40#, and a 110#. The people at the store told me that the only difference between them is how much of the blasting medium they hold. They said that all of them would run off of the same air...