 My name is Jeff Hemingway. I'm the sole quality specialist here in South Dakota. And today we're actually going to look at our sole quality and water movement model. Demonstration here is really set up for small groups, classrooms, farm shows, that kind of display. And we'll just take it apart and actually look at the model and see what the components actually are. So as we take apart the model, you can see that it comes packed. But for the most part, the model itself is actually a number of jars, equipment, funnels, et cetera, set up to really look at a number of different parameters. And that's, well, everything from capillary activity. In other words, that capillary flow upwards, that upward movement of water through soils to hydrologic conductivity, permeability, actually. And then we can actually look at other parameters associated with the various soil samples that we actually have set up for this demonstration. So the first thing we can actually start with is you can actually see that we have an aggregate stability jar. We call it aggregate stability. Actually, it's a slake test. You can see that as I remove the top here, we actually have a screen. Within, you can remove that screen within the jar itself. We're actually going to put an aggregate on the screen. The jar is going to be full of water. And we're going to actually look at to see how that aggregate falls apart, how well it's stuck together, how water stable it really is. For the most part, we're looking at tilled soils that having low aggregate stability will fall apart fairly rapidly. Those that are no-till or under grassland conditions will actually be very stable in water. That's this component of the demonstration. So the other components we actually have are there's two other basic components. The second one I'll talk a little bit about is a capillary activity. That is water movement up through soils. We actually have a bulletin holder here. We'll put a paper towel in this bulletin holder and then actually sit that in a tray that we have within the model of water. You can imagine that with a paper towel in this tray, we're going to actually have water move up through the paper towel to demonstrate capillary activity. We can use that alone with paper towel or we actually have within the kit, there's some food color in the kit too that'll actually help make that more visible for a demonstration. So one or the other that you can actually use within the demonstration. The third basic component that we actually have within the model is a number of jars and there are several of them within the model to actually demonstrate hydrologic conductivity. In other words, water movement through that soil permeability. And that jar that we actually have in here as you can see on the bottom of the jar here is perforated. The jar setup is basic among the jars that we have. We have a catchment vessel. That's just the catch water that actually moves through the jar itself. And there are a number of funnels that are actually set up in the top of the jar itself so that we're actually going to look at as we have various soils. It could be coarse sandy, could be fine clays, could be soils with poor aggregate stability or good aggregate stability, could be layered effects set up within the jar itself. We're gonna move water through that vessel and then catch that. We're gonna look at it's ponding water, if it's not ponding water and talk about reasons why we're actually either having permeability or for that matter not having permeability within this demonstration. So those are the three basic components that we have of the model. And what we're gonna do now is actually set up a number of the demonstrations and look at how they actually should work for your demonstration.