How long can I expect my products to last before needing to be replaced?
Valves are usually the first parts needing replacement and should be replaced every 6-8 weeks depending on use (they will start to open (duck bill should be closed)) and you will notice that the pump will lose suction.
Next to go will usually be the Diaphragms, which is not very often, but this could be related to a problem with suction.
Adaptor cap, tubing + connector don’t need washing so these should last you a very long time.
Power cords: Rarely stop working, but often mom’s will want an extra cord or may have lost or misplaced the original.
Everything else: should last indefinitely unless a piece breaks or goes missing!