Using Generic Parts with Eufy S1/S1 Pro and Eufy E10 Pumps: What You Need to Know
When it comes to maintaining your breast pump, it’s tempting to consider generic replacement parts as a cost-saving option. However, when using pumps like the Eufy S1/S1 Pro or Eufy E10, this might not always be the best approach. Let’s break down the key considerations and why genuine parts are often worth the investment.
Understanding the Differences in Design
The Eufy pumps are part of the S32 family of pumps, which includes models like the Lansinoh Duo Discrete and Motif Aura. While the pump bodies may seem interchangeable, the motors and diaphragms are specifically customized for each brand. For example, the Eufy diaphragms are unique, opaque tan parts designed to ensure proper suction and efficiency. In contrast, many generic diaphragms, such as those sold by brands like Tovlid on Amazon, are clear and may not fit or function as intended.
The Risks of Generic Diaphragms
Generic parts often claim compatibility but may only physically fit rather than function as designed. Here’s what we found during testing:
Fit Issues: Generic diaphragms, like the Tovlid brand, may not seal securely, leading to rocking or instability during use.
Performance Impact: Using generic diaphragms altered the suction patterns on both Eufy pumps. For example, in simulation mode, the short pulls and long pulls were affected, reducing efficiency. On expression mode, maximum suction dropped from the typical 250-270 mmHg range to around 220 mmHg.
Potential Motor Damage: A poorly fitting diaphragm can allow milk to flood the motor if the pump overflows. Genuine Eufy diaphragms are designed to prevent this, while generic parts may create a path for milk to reach the motor, causing corrosion and eventual failure.
Considerations for Sensitive Users
If you have sensitive nipples or typically use lower suction levels, generic parts may perform adequately up to a certain point. However, above level 4 suction, performance declines significantly, and there is an increased risk of the diaphragm getting stuck or failing to release properly.
Recommendations for Maintaining Your Pump
To ensure the best performance and longevity for your Eufy pump:
Stick to Genuine Parts: Eufy’s proprietary diaphragms are designed to maintain suction efficiency and protect the motor.
Stock Up: Avoid last-minute purchases by keeping 2-3 sets of replacement parts on hand. This helps you manage unexpected delays in shipping or stock shortages.
Plan Ahead: Order parts in bulk to save on shipping and ensure you’re never caught without spares.
Generic Parts and Other Pumps
While generic diaphragms caused issues with Eufy pumps, they performed well with models like the Lansinoh Duo Discrete and NCVI S32. However, with pumps like the Artemelia, results were less favorable. Always verify that generic parts have been tested to work correctly with your specific pump model before purchasing.
Tools to Help You Decide
To navigate the complexities of pump parts, check out Genuine Lactation’s Wearable Pump Paperweight Calculator and other resources to help you find the best options for your needs. Links to these tools and additional guidance can be found below.
Final Thoughts
While generic parts may be a viable option for some pumps, they’re not recommended for the Eufy S1/S1 Pro or Eufy E10 due to fit and performance issues. Investing in genuine parts ensures your pump works as intended, protects the motor, and delivers the best possible experience. Happy pumping!
