If you're a pumper, effective pumping is key to maintaining a healthy milk supply. And pumping is now so easy with Freemie Cups that YOU ARE GOING TO WEAR OUT PARTS. We know it's frustrating when things don't seem to work as well as they did before. Sometimes users have inadvertently started taking shortcuts, and then something is incorrect in their pump/bra setup. But reduced or complete lack of suction, or leaking, can also be a result of parts that are worn out or damaged. So remember, spare parts are a lot cheaper than infant formula. If your pump has stopped working effectively, and you're not sure what the problem is, call or email us and we'll try to help you figure out which parts you may need to replace.