I really like the concept of this machine. I use it sporadically, mostly to store grain, flour, etc. However, while it worked fine initially it progressively has had more and more trouble pulling enough of a vacuum to seal (the sealing part of the machine is only activated when the vacuum reaches a certain point). Now it is totally useless. The rubber seals look to be in good condition and I don't recall any trauma that occurred, such as liquid being sucked into the machine, etc. I don't think that I even used the machine to seal more than 50 bags before it stopped working. What a disappointment!