sentence: A man wearing scuba gear walks along the edge of a swimming pool. sentence:  The man starts talking to the camera and shows the camera various items. sentence:  The camera shows the swimming pool. sentence:  A tool and air compressor is shown. sentence:  The man enters the swimming pool and proceeds to place a cover on the drain while under water in the scuba gear. sentence:  The man gives a thumbs up. sentence:  The man shows the bubbles the tool makes underwater while bobbing his head.