 Oh, yeah, absolutely. That's another thing that gets a low pressure with a cleaner on it. You don't ever want to put any pressure on your composite decking or stairs because you can ruin it. Right, and that's what I've heard. It'll take the exterior coating off of it, and it becomes porous, and then the mold will actually get into the decking itself. Okay, and then do you need to seal that too or no because you're using just a low pressure?