I use the bags for use at the construction site. The problem is, he is not "big" enough. The volume is sufficient, but it is longer than deep. That is, if I suck up dust and plaster chunks, etc., then the weight pulls the bag from the pipe. Impractical, that has not happened with the original bag. I have really soaked, then emptied and used again. Saved out of laziness in the wrong place. For me unfit but otherwise they serve their purpose ...