If you are getting less breast milk when using your eufy Breast Pump compared to another breast pump, please try the following methods:

• Please use the included nipple measurement card to choose the right size. Elasticity can affect sizing. You may need to size down if you have elastic nipples, or size up if you have less elastic nipples. 
• Inspect the duckbill valve and diaphragm for damage, including cracks, chips, holes, or tears. If a component is damaged, please discontinue using the component and purchase a replacement component.
• Please ensure your eufy Breast Pump has been assembled correctly and the four components (duckbill valve, flange tunnel, diaphragm, and pump hub) are perfectly sealed.
• Please adjust the wearing position and ensure the nipple is at the center of the flange tunnel.
• Please try different suction and rhythm settings.

If you have any further questions regarding the eufy Breast Pump, please don't hesitate to reach out to us for assistance.