I was having a similar problem and I changed pouch brands. I have a stomach roll that caused the wafer to crimp everytime I sat down. It was painful and required me to change the pouch every 2 days. I was using a Convetec 1 piece. I switched to a Hollister one piece (88400 to be specific). The wafer is smaller, thinner, and more flexible. It's given me a much better seal. I haven't had any problems since. If you call Hollister, they can send you out some samples so giving it a try won't cost you anything. I would tell them you situation and maybe they can get a rush order to you.
Post Edited (Ohio43) : 11/29/2008 11:36:11 AM (GMT-7)