Using this Submarine Spray Station is a breeze. First, put the battery - operated submarine at the bottom of the tub and use the suction cups to attach the activity station to the side. Make sure the water level is right - it should cover the submarine windows and the yellow propeller of the activity station should be above the water. To start the water flow, just squeeze the knobs on the naver shower handle. These knobs are made so small hands can easily grip and activate them. Once the water is flowing, direct it into the activity station to enjoy the chain reactions like funneling, spinning, and spraying. You can also pour water into the funnels to make the googly eyes move or spin the dial. As for maintenance, after each use, dry the submarine and the activity station with a soft cloth. Keep the batteries in a dry place and replace them when they run out. Be careful not to let the non - waterproof parts get too wet. Have a great time with your Submarine Spray Station!