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Cleaning instructions for Dew 350

Cleaning Instructions for your Dew 350 - Please read carefully, as the information contained in the instruction leaflet is insufficient

The following parts (with reference to the parts list on page 4 of the manual) may be sterilized in boiling water or steam whenever necessary:

    1. Breast Shield (part no. 4)
    2. Valve (part no. 5)
    3. Bottle (part no. 6)
    4. Bottle cap (part no. 9)
    5. Nipple (part no. 8)
    6. Bottle Cover (part no. 7)
    7. Disc (part no. 10- please excuse the incorrect spelling of the part in the manual).


  1. The following parts should be washed in warm, soapy water when necessary (when visibly dirty, otherwise about once a week) but never sterilized:
    1. Tubing (part no. 2)
    2. Short (Filter) Tubing (part no. 11).


  1. The following parts should never be washed, immersed in water, or steamed. Only clean by carefully wiping with a damp cloth:
    1. Pump unit (part no. 1)
    2. Filter (part no. 3).

i.      IMPORTANT NOTE: The function of the filter is to protect the motor inside the pump unit from back-flow of moisture and growth of mould. Any flow of moisture into the filter will impact its functioning and/or the suction of the pump. You will be able to tell that the filter has absorbed too much moisture by the fact that the red lines on it will appear faded or smudged. If this happens, please replace the filter immediately. You can prolong the life of your filters by ensuring that the tubing is always completely dry before connecting the pump parts. To dry the tubing quickly, whip it around fast like a lasso to enable centrifugal force to drive out all the moisture. (It is preferable to do this outdoors and away from children.)

  1. When sterilizing any of the parts mentioned in paragraph (1) above, please do not use chemical solutions, as these may damage the parts. Chemical sterilizing solutions could also cause or aggravate oral and nipple thrush. The only sterilizing methods we recommend, are boiling and steaming. (If you boil, please keep an eye or set a timer to avoid accidentally melting your parts.)

 Troubleshooting suction power loss


In addition to the troubleshooting guide on p. 10 of your manual, please take note of the following:

  1. If you are experiencing a decrease in suction:
    1. Check the valve (part no. 5 on page 4 of your instruction booklet) for tears or holes.
    2. Check the filter (part no. 3 on page 4 of your instruction booklet) for cracks. Also make sure that the red line on the filter is still bright and clear. If the red line appears faded or smudged, it means that moisture has entered the filter, and the filter needs to be replaced.
    3. Make sure that the pump has been connected correctly. The long tubing (part no. 2 on page 4 of your booklet) needs to be connected to the back of the breast shield (part no. 4 on page 4). The filter (part no. 3) then needs to be connected to the other end of the long piece of tubing. The short tubing (part no. 11) is then used to connect the other end of the filter to the pump unit (part no. 1). So when you have everything connected, the filter needs to be sitting right next to the pump unit. If your filter is sitting directly behind your shield, it means that your pump has been connected incorrectly. This may lead to a decrease in suction as well as damage to your pump.
    4. If you have checked all of the above and found nothing wrong, but still experience a decrease in suction, please contact us


Discomfort during expressing

If you are experiencing discomfort while expressing, or if the breast pump does not seem to remove your milk effectively:

    1. It is possible that the suction setting is either too weak or too strong for you. Gradually adjust the strength by turning the knob, and see if that makes a difference.
    2. The flanges of the breast shields might be too large or too small for you. When you are using the correct size flange for you, your areola should be moving freely within it, and your nipple should not be rubbing against the sides of the flange tunnel. Expressing should also be effective – you should not be feeling as if most of the milk is not removed from the breast during expressing. The flange size of the breast shields that are included with your Dew 350 Electric Breast Pump, is 24mm. Spectra also has a 28mm and 32mm Breast Shield Set available.