 maybe for an hour or so. Just put a little moisture in there. Right now I've got a gap between the clay and the foundation. I almost take my hand and put my fingers in that gap. So it's significant. But wetting that down a little bit will cause that to expand. Again, you don't want to put a bunch of water on that foundation, but just a little bit of it to help it expand and push up against the foundation. It will be an advantage.