What are the limits (legal limits) of the First Amendment? What are the limits of freedom of speech in the U.S.? What is the friendliest state for the 2nd Amendment?
Another way to keep up your milk supply is to pump regularly when you are not nursing from your breast or are away from your baby for more than a few hours. If you are away for the day at work, my breast pumping schedule would be to pump every 2-3 hours for about 15 minutes or so.
At 40 PSI the pressure switch starts the pump, the pump fills the pressure tank to 60 PSI, and the pressure switch shuts off the pump. This is called a cycle. Cycling the pump on and off causes almost every problem with pump systems. The maximum number of cycles allowed for a 1 HP pump to survive is 100 times per day.