Introduction
The Willow 3.0 Wearable Breast Pump is designed to provide a discreet, hands-free, and efficient milk expression experience. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your Willow 3.0 pump to ensure optimal performance.
What's Included
Your Willow 3.0 Wearable Breast Pump package typically includes:
- Two Willow 3.0 Pumps (Left and Right)
- Flanges (24mm included, other sizes sold separately)
- Milk Bags or Reusable Milk Containers (4 oz capacity)
- Charging Cable and Adapter
- Cleaning Brushes
- Instructions for Use / Quick Start Guide

Image: The Willow 3.0 Wearable Breast Pump kit, showing the two pump units, flanges, and other accessories in their packaging.
Setup
1. Unboxing and Initial Charge
Upon receiving your Willow 3.0, carefully unbox all components. It is recommended to fully charge both pump units before first use. Connect the charging cable to each pump unit and plug the adapter into a power outlet. The indicator light will show charging status.
Video: A detailed unboxing of the Willow 3.0 pump, demonstrating how to open the packaging and revealing the included components.
2. Assembling the Pump
The Willow 3.0 can be used with either disposable milk bags or reusable milk containers. Ensure all parts are clean and dry before assembly.
- Flange Attachment: Select the correct flange size for your comfort and fit. Attach the flange to the pump unit.
- Milk Bag/Container Insertion: If using milk bags, insert a new bag into the flange assembly, ensuring it is securely seated. If using reusable containers, attach the container to the flange.
- Seal and Valve: Ensure the seal and valve components are correctly positioned to create a closed system for suction.

Image: Close-up view of the Willow 3.0 pump unit with a clear flange and milk container attached, illustrating the assembly process.
Operating Instructions
1. Powering On and Placement
Press the power button on each pump unit to turn it on. Place the assembled pump units inside your bra, ensuring the flanges are centered on your nipples. The pump should feel secure and comfortable.
2. Adjusting Suction Levels
The Willow 3.0 offers 9 levels of smart suction strength. Use the '+' and '-' buttons on the pump unit or the Willow app to adjust the suction to a comfortable and effective level. The pump will automatically transition between stimulation and expression phases.
3. Using the Willow App
Download the Willow app to your smartphone for enhanced control and tracking. The app allows you to monitor milk output, adjust suction, and track your pumping history. The Willow 3.0 is also compatible with Apple Watch for convenient control.
Video: Demonstrates the Willow 2.0 (similar to 3.0) compatibility with Apple Watch, showing how to track output and control suction directly from the watch, and highlighting the direct-to-bag pumping feature.
4. Finishing a Pumping Session
Once your session is complete or the milk bag/container is full (4 oz capacity), the pump will automatically stop. To remove the pump, gently break the seal and carefully detach it from your breast. If using milk bags, seal the bag and store. If using reusable containers, transfer milk to storage bottles or bags.
Maintenance
Cleaning Instructions
Regular cleaning of your Willow 3.0 pump parts is crucial for hygiene and optimal performance. The pump units (motors) should not be submerged in water. Clean all milk-contacting parts after each use.
- Disassemble: Separate all parts that came into contact with milk (flanges, containers, valves, etc.).
- Wash: Wash these parts with warm, soapy water. Use the provided cleaning brushes to reach small areas.
- Rinse: Rinse thoroughly with clean water.
- Air Dry: Allow all parts to air dry completely on a clean surface or drying rack.
- Sanitize: Periodically sanitize parts according to manufacturer recommendations (e.g., boiling or steam sterilization).
Troubleshooting
If you encounter issues with your Willow 3.0 pump, refer to the following common solutions:
| Issue | Possible Cause | Solution |
|---|---|---|
| Pump not turning on / Red light | Low battery | Charge the pump fully. A red light indicates low battery. |
| Yellow light blinking | Pump needs attention or is in a specific mode | Check the Willow app for specific error messages or status. |
| No suction or weak suction | Improper assembly, damaged part, or incorrect flange size | Ensure all parts are correctly assembled and sealed. Check for cracks or damage. Verify flange size. |
| Milk leakage | Improper seal or overfilling | Ensure all parts are securely connected and the milk bag/container is not overfilled. |
| Pump not connecting to app | Bluetooth issue or app malfunction | Ensure Bluetooth is enabled on your device. Restart the app and pump. Re-pair if necessary. |
Specifications
- Model Number: PDW48
- Product Dimensions: 5.67 x 4.41 x 3.35 inches
- Item Weight: 12.5 ounces
- Power Source: Battery Powered
- Operation Mode: Electric
- Capacity: 4 ounces (per pump)
- Material Type: BPA Free, Lead Free
- Flange Size: 24mm (included)
- Dishwasher Safe: No (for certain parts, refer to cleaning instructions)
Warranty and Support
The Willow Pump comes with a 1-year non-transferable manufacturer's warranty for the original purchaser when bought directly from Willow Pump or authorized retailers. The warranty is voided if bought from unauthorized resellers.
For customer support, troubleshooting assistance, or warranty claims, please visit the official Willow website or contact their customer service directly. Existing Willow 3.0 customers will continue to be supported.





