Which pump settings to use for the Spectra S1 and S2 electric breast pumps

In this post I cover what the buttons on the Spectra S1 and S2 mean, the pump settings I recommend, and options for customising your Spectra settings to improve milk output during your pump session.
How to measure your nipple to find the right breast shield size
When using a breast pump you want to ensure you’re using the right sized breast shield to maximise your milk output and prevent nipple damage.