How often you replace parts is highly variable depending on how often you pump and how you clean / sterilise them.

VALVES – reduced suction when pumping is often the first sign that your valves need replacing. You should expect to need to replace your valves every 2 to 3 months if pumping regularly. The top of the valve is quite delicate and can be susceptible to fraying or tiny tears, so if you notice reduced suction or lower milk output then examine this area carefully. Your valves will last longer if you avoid cleaning them in the dishwasher and use a steriliser instead of boiling them in water. It’s very reasonable to have spare valves on hand and we recommend you have some spare at home.

TUBING, BACK FLOW PROTECTOR, BREAST SHIELD – need replacement only if you notice damage to it or you bought a second hand pump.