My dad came home with a drainage bulb after having the upper and middle lobes of his right lung removed. My question is about it not staying collapsed after it starts draining. It does for a little while but then as it drains it balloons out. We don't remember it doing this in the hospital, but it does collect fluid. Is this normal? How long do you usually have to have the drain in place? The hospital left it hanging. It hangs as he walks, etc. He does his walking and the breathing devices.