It seems a lot of people are having this issue with this this thing. I just got it a couple of days ago and it worked fine after I first set it up. However, the next day when the co2 came on again it stopped working, I know this because the hissing noise it made on the first day ceased. I just have one check valve on it, however I heard that people are using two on this setup, could that be the problem? Anyone know why this thing stopped working after the first day, i also didnt soak it before i installed it. Im going to soak in in bleach over night to see if that helps. However how would it get clogged that fast?