I've had a SP tube for nearly 6 years, and no one ever told me that I could take the bag off and clean it. In fact, I was told not to do so.
So... I just wear a bedside bag until it gets a bunch of junk on it (about a week), then I trash it. How often do you guys clean your bags? Is there less risk of UTI with cleaning the bags or just keeping the system closed the way I do?