Kangaroo Joey Pump Set - 500 ml - Each

This is what I do. I take a medium size hook which has a suction cup on it and suction cup it to the bathroom mirror fill the bag with warm/hot water & then stretching the hose w/my fingers (the wheel on the pump), keep doing this until the water runs free down the hose & then I put the end of the hose in the sink (take rest of the hose and curl it up and lay it on the sink so the water you are running through the hose has no "hill" to go up) and then I go to bed and by the time I get up the water has gone through the hose cleaning the bag and the hose out. I also slosh the water around in the bag prior to it running through the hose so the bag looks cleaner than it started with. That is what I did when I had to reuse the bags.