Re: Used pumps
They suggest buying new cones and tubing but it should be fine for the pump you're talking about.
I would probably replace at least my own tubing if we have another child just because they've been sitting. They (the tubing) do collect condensation when working so I would think it would be best to start with new regardless of who used it before.
I would def use a used one though. I was going to use my friend's that she was done with but my insurance covered a pump that we picked up from the hosp when ds was born so we went with that one and she sold hers.