Pipe Inspection

I followed a strange metallic gurgle right under the sink! Down between the floor tiles and the cabinet, a shiny curved pipe was doing a funny gurgling routine. Naturally, I had to tap it to the beat. Clank, clank-clank! I leaned in close, inspecting the polished chrome curve and singing a low brass note right into the metal to see if the pipe would sing along with me. It just echoed back a bubbly hum, but what an impressive piece of plumbing!