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SPECTRA S2 PLUS Plus Low Suction On One Side

CONF DIAGNOSIS PART MATCH ACTION
91%
CONF
Duckbill Valve
The duckbill valve is a one-way silicone flap that creates a vacuum seal during the pump's pull stroke. Over time, the silicone undergoes material fatigue and micro-tearing, preventing the 'lips' from closing completely. This failure allows air to leak back into the flange, significantly reducing the pressure differential on the affected side.
SKU: MM012371
Duckbill Valve
CHECK PRICE #CommissionsEarned
5%
CONF
Backflow Protector Membrane
The backflow protector utilizes a silicone membrane to separate the pump's pneumatic system from the milk collection system. If this membrane is improperly seated, stretched, or develops a pinhole, the vacuum circuit is broken. Since each side has its own protector, a failure here results in localized suction loss on that specific port.
Backflow Protector Membrane
CHECK PRICE #CommissionsEarned
4%
CONF
Replacement Tubing
The tubing acts as the primary conduit for the vacuum; any loss of airtightness at the connection points (pump port or backflow protector inlet) will cause a pressure drop. Over time, the ends of the tubing can stretch and lose their friction-fit seal, or the polymer can develop stress cracks that introduce ambient air into the vacuum line.
SKU: MM012356
Replacement Tubing
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DIY Repair Guide

Watch exactly how to replace the Duckbill Valve.

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