theresat858:You only need to sterilize the tubing if milk gets into it, which shouldn't happen normally.
Yep ditto that. You don't need to clean or sterilize the tubing unless you get milk into them. The instructions that come with the pump say that if you get condensation in the tubes, just let it run not hooked up to you and it will clear them out. That's what I do and it works just fine.