Measuring, signalling and supervision equipment; control and data acquisition equipment; control and data acquisition systems for remotely monitoring and controlling equipment in the field; software, including software for scheduling customer orders, software for communications networks, software for lodgement and modification of orders, software for planner supervision and management, software for database management and software for behavioural modelling; equipment for measuring water flow and water levels; flow meters; communications equipment; equipment and apparatus for communications and communications networks; all of the foregoing being for management of water flows and levels