So I'm looking for an electric breast pump and see the medela swing comes highly recommended. They sell heaps cheaper on eBay, but someone on here has advised me that it's an open system meaning you can't sterilise the inside and some milk can get into the inside meaning you end up with old milk in them..bleurgh! Not nice to buy second hand and maybe that's why they're cheaper?!
Is there a way to get around this or is there a breast pump out there that is closed already. Does anyone have any idea what I'm talking about and can advise me?!