When I put it in (using the punch-down fold), I feel like I can't get a good seal, even though I am twisting it around like I'm supposed to. I've tried clenching, but it doesn't seem to help. As a result, I am getting some major leakage. I know that the cup isn't getting too full, and the fluid that comes out is always really thin and liquid. I took out the cup to examine it, and it looks like there might be some damage around one of the holes, probably from when I unwisely thought that I could be careful enough to clean them out with a safety pin (in my defense, I was desperate in a foreign country without potable water). Could this be the cause of my issues?
I really love my cup, but now I'm more uncomfortable wearing my cup than I ever was with paper products. Help!