Irrigation area very well adjusted

The lawn sprinkler / Sprinklers Gardena Aqua zoom 350/3 Art. 1977-20, the irrigation area on all four sides can be adjusted individually. In addition, the entire flow rate can be reduced. This is very handy. The size of the irrigated area depends on the available water pressure. Lt. Package label can be supplied at 2 bar water pressure at the sprinkler from 3.5 to 14.5 m in one direction and from 6 to 14 meters in the other direction (21 to 200 sqm). At 4 bar there are 4 to 17 meters and 7 to 21 m (28 to 350 m). We have with us a little more than 3 bar at the water connection in the house, the pressure reduced by about 50 m hose to the sprinkler but apparently so much so that we at least two sprinkler Gardena Aqua zoom 350/3 need to keep our 300 m² to irrigate a train.