Oh, maybe that's why I didn't have any issues. I was just releasing it. To clear up floor space, I set the pump and disconnected the hoses to the side. Any time I move it, I close the breather valve to avoid any spills. I just forgot to undo it when it came time to lowering the car.yeah, my reservoir collapsed in when I was lifting the car.
I probably didn't have to replace it with a new one. But he new one was only $40 so I didn't mind replacing it.
after I removed the damaged one I was able to bend it back into shape so I kept it in my basement.