This article covers the following breast pump models: Air1/M9/M6/M5/V1 Pro/V2 Pro/S9 Pro/S12 Pro
To help us pinpoint the problem quickly, could you let us know which of these best describes the leak?
- Is milk leaking from the pour spout, either during pumping or when pouring?
- Is milk leaking from the seam where the flange and the milk collector connect?
- Is milk leaking from where the flange meets your breast, or does milk seem to back up in the channel instead of flowing down?
I. Leaks from the Pour Spout
If you're noticing leaks specifically from the pour spout, here are a few things to consider:
- Pumping Posture: Please try to keep your upper body upright while pumping and avoid leaning too far forward, as this can cause milk to overflow from the pour spout.
- Milk Collector Volume: Be mindful of the recommended capacity of your milk collector (e.g., 120ml for M5). Promptly empty the milk collector when milk approaches the maximum fill line to effectively prevent spills.
- Pouring Technique: When pouring milk, do so gently and steadily to minimize splashing.
II. Leaks Between the Milk Collector and Flange
If leaks are occurring between the milk collector and the flange, please check the following:
- Inspect for Accessory Damage: Please carefully check the edges of the flange and milk collector for any signs of damage or cracks. If any damage is found, stop using the affected part and contact us.
- Ensure Tight Connection: Make sure the flange and milk collector are perfectly aligned and securely fastened. When assembling, refer to the diagrams in your user manual for guidance (e.g., aligning the heart markings on M5), ensuring a proper seal is formed.
- Correct Sterilization Method: Always follow the sterilization instructions in your user manual. Avoid excessively high temperatures or prolonged sterilization, which can deform accessories and affect the seal. If parts are already deformed, please contact us.
- Maintain Clean and Dry Connections: Ensure that the grooves and edges of all connecting parts are thoroughly clean and completely dry. Any residue can compromise the seal.
III. Leaks from the Pumping Channel or Impeded Milk Flow
- Is it normal to have a small amount of milk residue in the channel after pumping?
It's normal to find a small amount of milk lingering in the flange channel after a pumping session. When removing the breast pump, try to keep it steady or tilt it slightly forward; this helps any remaining milk flow into the milk collector.
- Why might milk leak during the pumping process?
- Posture and Movement: Try to keep your body upright during pumping and avoid large movements, which helps milk flow smoothly downwards.
- Bra Fit: Ensure your nursing bra holds the flange securely and seamlessly against your breast, creating a good seal.
- Flange Size: An incorrect flange size directly impacts the seal and pumping efficiency. Please refer to the sizing guide when choosing, and if you're unsure, feel free to contact our customer service for assistance.
- What if milk flow is impeded or milk backflows into the channel?
- Pumping Timing: If your milk is thicker or you have a strong let-down, milk flow might be impeded. We recommend regular pumping sessions. When pumping, you can also try leaning slightly forward to encourage smoother milk flow.
- Check Core Silicone Accessories:
- Please check the diaphragm whether it is installed correctly, and for any signs of aging or damage.
- Please check the duckbill valve to ensure it's properly installed, undamaged, or if its opening is stuck together by dried milk residue.
- These two silicone accessories are consumables. To maintain optimal performance, we recommend replacing them every 1-3 months, depending on your frequency of use.
IV. Performing a Simple Seal Test
How do I conduct a static seal test?
- Correctly assemble the milk collector and all its accessories (flange, diaphragm, duckbill valve).
- Add water to the milk collector up to your usual pumping volume.
- Wipe the outside of the milk collector dry and place it on a flat surface for at least 10 minutes.
- Observe closely for any leaks from the connections.
- How do I conduct a dynamic (in-use) test?
If the static test shows no leaks, empty the milk collector, reattach it to the main unit, and wear the pump as you normally would. Run a pumping program and observe if any leaks occur during the pumping session.
(If the static test reveals leaks, focus on checking accessory installation and integrity; if leaks only occur during the dynamic test, pay close attention to wearing fit and flange size.)
