Placing an aerator into your pond can be accomplished in a few easy steps. First, carefully remove the aerator from the packaging and uncoil the  aerator hose. Next, fill diffuser and weight with gravel or sand. Place pump securely on the shoreline. Sink the diffuser in or near the deepest part of the water. the airline is weighted, so this will drop to the bottom. Plug in the aerator and everything should be up and running.