Plan and perform all required operations to install, maintain, and repair water, steam, oil, air, gas, acid, sanitary waste, wastewater, sprinkler, pressure and piping systems, pumps, motor sets, heating and air conditioning equipment, and related apparatus in plant, office and yard areas. Install the proper number of sprinkler heads according to pipe size; maintain and adjust dry and divisional valves, obtaining proper pressures to obtain effective operation of sprinkler systems.