We often use the bottles of sterile water provided by our hospital's formula company of choice--just dump out the water and pump directly into them and put the lid back on. However, we do not have an NICU so I don't know what would happen if we started using huge quantities of sterile water bottles . . . maybe the ABM folks would think we had started supplementing babies! :-) Becky Krumwiede, RN, IBCLC, Appleton, WI [log in to unmask] or [log in to unmask]