Can Haakaa replace an electric pump?
No.  The Haakaa shouldn’t replace an electric breast pump because it's not as effective as an electric pump.  Also, an electric pump imitates a nursing baby’s sucking pattern.  The Haakaa or any other form does not do this.   It simply applies gentle suction to collect or hand express into it. For mamas who plan to exclusively pump, an electric pump is the better option. I dealt with engorgement, which causes your breast to be firm and pretty uncomfortable.  Nursing often and draining your breast regularly helps prevent engorgement.  What brought relief was my electric breast pump.  For me personally, the Haakaa manual breast pump would only give me slight relief.  If you need to remove larger quantities of milk an electric breast pump would be more beneficial. Tip:  Keep supply and demand in mind!  The more you take, the more you make!