For optimal pump performance, milk output, and hygiene, regularly examine and replace delicate pump parts. For example, if your pump seems to have lost suction, the first thing you should do is assess your pump parts. Follow the guide below.
Contact Caroline Wick Carter, IBCLC if you have any questions: caroline.wick@ucsf.edu
Valves | Replace every 4-12 weeks
For ideal suction and to keep your pump clean and damage-free, be sure to replace valves often. Avoid washing valves in the dishwasher or steam-sterilizing in the microwave. The intense heat of these methods can cause the elasticity to degrade quickly.
Membranes | Replace every 2-8 weeks
Membranes are delicate and damage may be hard to notice. If your pump loses suction on one side or you experience less suction when pumping, these membranes may need to be replaced. Like with valves, prolong the use of these parts by soaking, rather than sterilizing with the microwave or dishwasher, to clean.
Backflow or Diaphragm | Replace every 3 months
The backflow protector or diaphragm prevents moisture from entering the tubing and protects your milk from contaminants. These parts can degrade and stretch over time, impacting suction. Make sure they are not torn, wet, or damaged.
Tubing | Replace every 3-6 months
Damaged tubing or stretched-out tube ends can happen over time and impact suction performance. It is important to keep tubing completely dry because moisture can damage the motor and condensation can turn into mold. Always inspect tubing before pumping and keep an extra pair on hand.
Flange or Shield | Replace every 6 months
Keep an eye out for cracks, warping, and residue build-up, and replace immediately if you notice this. For hygiene reasons, replace at 6 months.
