And it's easier to see the on/off state of a ¼-turn valve: The handle of a ¼-turn valve will be parallel to the flow of water when open (on), and perpendicular to the pipe when closed (off).

Close sewer isolation valves, limit water use, city tells residents in red and yellow zones CBC News · Posted: Jun 22, 2014 4:18 PM EDT | Last Updated: June 22, 2014 ...