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    Products

    Avent Manual breast pump set

    On-the-go set SCF300/13

    Troubleshooting

    My Avent breast pump valve pops out while expressing

    Constant vacuum will cause the valve to be “absorbed” and pop out of its place. Press the handle rapidly when you start to pumping. Once the let down has occurred slow down and hold the handle for 2-3 seconds before releasing it completely. If you release the handle half way it will continue building pressure inside the pump which could cause the valve to pop out due to too much pressure.

    The information on this page applies to the following models: SCF300/13 , SCF300/20 , SCF290/12 , SCF290/13 , SCF290/20 . more less