Learn how to build the coolest rock waterfall with no pond necessary! follow this step by step guide by the Russell Tech experts and enjoy your brand new Hydrorocks. Start with your HydroRock™ Kit from Russell Watergardens & Koi. Your HydroRock™ Kit will not only include Liner, Underlayment, Pipe, and all PlumbingFittings, but also includes your choice ofHydroRocks™, submersible or centrifugal pump, and HydroLights™. Start your HydroRock™ Kit installation from bare ground. HydroRocks™ can be installed virtually anywhere within your garden or landscape.