Quick Answer

Clean Willow Wave Gaskets after every use by rinsing with cool water, washing with mild soap, and air-drying completely. Avoid twisting or stretching the gasket to preserve the seal and prevent leaks.

Why Gasket Care Matters for Your Willow Pump

The Wave Gasket creates the vacuum seal that makes your Willow wearable pump work. A dirty or damaged gasket can break that seal, causing milk to leak or the pump to lose suction. Regular cleaning removes milk residue and prevents bacterial buildup, keeping both you and your pump healthy. Because the gasket is a small, flexible part, it is easy to overlook — but a few minutes of care after each session can save you from frustrating leaks and the cost of early replacements.

When to Replace Your Wave Gaskets

Even with perfect cleaning, Wave Gaskets wear out over time. If you notice persistent leaks, reduced suction, or visible cracks, it is time to swap in a fresh set. The Willow Wave Gaskets (2-pack) is designed to fit your Willow wearable pump and is easy to replace. Keeping a spare pack on hand ensures you are never caught without a functioning gasket.

Step-by-Step Cleaning Guide

  1. Rinse Immediately After Pumping: Remove the Wave Gasket from the pump and rinse it under cool running water. Cool water helps prevent milk proteins from bonding to the silicone. Common mistake: using hot water first can bake milk residue onto the gasket, making it harder to clean and shortening its life.
  2. Wash with Mild Soap and Warm Water: Apply a few drops of mild, fragrance-free dish soap to your fingers or a soft sponge. Gently rub the gasket inside and out, paying attention to the thin edge that creates the seal. Rinse thoroughly with warm water to remove all soap. Checkpoint: avoid abrasive brushes or scouring pads — they can scratch the silicone and cause leaks.
  3. Air-Dry Completely Before Reassembling: Place the clean gasket on a clean drying rack or paper towel, away from direct sunlight. Let it air-dry for several hours until no moisture remains. Do not use a towel to dry it, as lint can stick to the silicone and break the seal. Common mistake: reassembling the pump while the gasket is still damp can trap moisture, leading to mold or a weak seal.

Products That Help With Gasket Care

  • Willow Wave Gaskets (2-pack): Keep your Willow Pump ready for every session with these replacement Wave Gaskets. This 2-pack is designed to fit your Willow wearable pump, helping you maintain a reliable seal and consistent performance. Includes two (2) Wave Gaskets for your Willow Pump. Compatible with Willow wearable breast pump systems. Easy to swap out when it’s time for a replacement. HSA/FSA eligible accessory. Having a spare set of Wave Gaskets means you can replace a worn or damaged gasket immediately, avoiding leaks and keeping your pumping schedule on track.
  • CoBoo Natural Pumping Spray: Pump longer and more comfortably with CoBoo Natural Pumping Spray, designed to lubricate your skin while you pump. Simply spray on your Willow 3.0 or Willow Go flanges and see the benefits after just one session! Using a pumping spray can reduce friction on the gasket and flange, which may help the gasket last longer and maintain a better seal over time.