Why Is My Breast Pump Losing Suction? February 21, 2021 By Lauren Carrane Is your breast pump not pumping as much milk as it used to? Here are 6 things you can try to troubleshoot the problem. (Click below to see infographic larger). Related Products: The Best Breast Pumps Covered by Medicaid The Quietest Breast Pump on the Market Best Ways to Warm Breast Milk