Abstract: A readily expandable portable above ground sprinkling system for watering a newly sodded lawn is provided. The system includes a portable container housing a water inlet, a bypass outlet, a battery powered control means, and a plurality of hose outlets, each having an associated flow control valve. A plurality of sprinkler heads are connected in fluid communication to the hose outlets with standard hoses. The control means is operable to electronically regulate the valves in order to accomplish a desired watering pattern.