How to Use the Willow 360 Flextube Set: Installation, Cleaning, and Replacement Tips
By Willow: Wearable Breast Pump – Willow Pump | Published: 2026-09-06
Category: How-to Guides
Learn how to install, clean, and replace the Willow 360 Flextube Set with step-by-step instructions, common mistakes to avoid, and practical maintenance tips.
Quick Answer
To use the Willow 360 Flextube Set, first ensure the tubes are fully dry before attaching them to the pump. Install them securely, then clean after every use with warm soapy water, and replace every 90 days or when you notice wear. Following these steps keeps your pump efficient and hygienic.
The Willow 360 Flextube Set is a key part of your wearable pump, connecting the collection container to the pump motor. Proper installation, regular cleaning, and timely replacement are essential for consistent suction and milk output. This guide walks you through each step, highlighting common pitfalls to avoid.
Whether you're new to the Willow 360 or just need a refresher, these practical tips will help you get the most from your pump. We'll cover installation, cleaning, replacement, and troubleshooting, so you can pump with confidence.
Understanding the Willow 360 Flextube Set
The Flextube Set is designed to be flexible and durable, but it still requires proper care. It connects the flange to the collection container, allowing milk to flow without leaks. Understanding how it fits and functions helps you avoid common issues like reduced suction or milk backup.
Always check that the tubes are not twisted or kinked before use. A kinked tube can restrict airflow and reduce pumping efficiency. Also, make sure the tubes are completely dry before attaching them—moisture can lead to mold or affect suction.
- Inspect tubes for cracks or wear each time you use the pump.
Installing the Willow 360 Flextube Set
Start by washing your hands and ensuring all parts are clean and dry. Attach the Flextube to the flange, pushing firmly until it clicks into place. Then connect the other end to the pump motor, making sure there are no gaps. A secure fit is crucial for leak-proof operation.
Common mistake: not aligning the tube correctly with the flange, which can cause leaks or poor suction. Always double-check that the tube is fully seated and that there are no bends at the connection points. If you have trouble, refer to the pump's manual or contact support.
- Check that the tube is not twisted before attaching to the pump.
Cleaning the Willow 360 Flextube Set
After each use, disassemble the pump and rinse the Flextube with cool water to remove milk residue. Then wash with warm, soapy water using a mild detergent. Rinse thoroughly and allow to air dry completely on a clean towel. Avoid using harsh chemicals or abrasive scrubbers.
For deep cleaning, you can use a dedicated pump cleaning kit, like the Dapple Baby Pump Cleaning Kit, which is designed to remove tough milk residue. Always follow the manufacturer's instructions for cleaning and sanitizing. Never boil or microwave the tubes, as this can damage them.
- Air dry all parts fully before reassembling to prevent mold.
Replacing the Willow 360 Flextube Set
For optimal performance, replace the Flextube Set every 90 days, or sooner if you notice signs of wear such as cracks, tears, or loss of suction. Regular replacement ensures consistent pumping and prevents leaks. You can purchase official Willow replacement parts to maintain compatibility.
If you use the pump frequently, inspect the tubes weekly for any damage. Replacing the Flextube Set is quick and straightforward—simply detach the old tubes and attach the new ones, following the installation steps. Keeping a backup set on hand can save you from unexpected interruptions.
- Mark your calendar to remind yourself to replace parts every 3 months.
Troubleshooting Common Flextube Issues
If you notice reduced suction or milk not flowing, check that the Flextube is properly attached and not blocked. Sometimes milk residue can clog the tube; clean it thoroughly and test again. Also, ensure the tube is not pinched by the pump housing or your clothing.
Another common issue is a loose connection, which can cause leaks. Re-seat the tube firmly and test. If problems persist, the tube may need replacement. Always use genuine Willow parts to ensure a proper fit and reliable performance.
- Keep a spare Flextube Set in your pumping bag for emergencies.
Step-by-Step Flextube Care
- Inspect: Before each use, check the Flextube Set for cracks, tears, or kinks. Replace if any damage is visible. Catching damage early prevents leaks and maintains suction.
- Install: Attach the Flextube to the flange and pump motor, ensuring a secure fit with no twists or gaps. A proper connection ensures leak-proof pumping.
- Clean: Rinse with cool water, wash with warm soapy water, and air dry completely after each use. Thorough drying prevents mold and maintains hygiene.
- Replace: Replace every 90 days or when you notice signs of wear. Use genuine Willow parts for best results. Regular replacement keeps your pump efficient and reliable.
Related Products
- Willow 360® Wearable Breast Pump: 100% leak-proof, hospital-grade, app-controlled, and supported by 360 Care. Comes with 21mm inserts & 24mm flanges. The Willow 360 pump is designed to work seamlessly with the Flextube Set, ensuring leak-proof operation and reliable performance.
- Dapple® Baby Pump Cleaning Kit (Exclusively for Willow): Designed for cleaning your Willow 3.0 and Willow Go pumps, both on-the-go and at home. Made with plant-based ingredients to remove tough breast milk residue. This cleaning kit helps you maintain hygiene and extend the life of your Flextube Set by effectively removing milk residue.
Proper care of your Willow 360 Flextube Set is simple and essential. By following these steps, you'll ensure consistent performance, avoid common issues, and make your pumping experience smoother. Remember to inspect, install correctly, clean thoroughly, and replace on schedule—your pump will thank you!



