Kingdom City Check Valves, Flush Valves and Vacuum Breakers ordinance (§ 700.390)

Users having boilers or hot water systems connected with mains of the Village shall have a check valve in the supply pipe to the boilers and hot water heating systems, with a release valve at some point between the check valve and the heating system. All users are hereby cautioned against danger of collapse of boilers since it is sometimes necessary to shut off the supply of water without notice, and for this reason, a vacuum valve shall be installed in the steam lines to prevent collapse if water supply is interrupted. The Village shall not be responsible for accidents or damages resulting from the imperfect action or failure of any valves.