Hands On Training DVD for Envision Groundwater Simulators and Septic Flow Simulators. Video includes information on setup, use and cleaning of groundwater simulators. Also included are tips and tricks for general use, as well as sample presentation ideas. Video is also beneficial for those with models produced by the Western Group, LLC and Crystal Scientific, LLC. These models were manufactured using earlier designs. Envision Simulators are State-of-the-Art products. Products Featured on the DVD also include the Density Demonstration Kit and Dye Injection System. FREE Training DVD only ships to US locations. International inquiries will be sent only with valid credit card to cover shipping fees, customs fees if any, are obligation of receiver. International requests should send inquiry to videos@creativelabworks.com. All international inquiries will be verified, we may not be able to ship to all countries based upon export regulations between USA and receiving country.