Sprinkler having a water inlet and a sprinkler head which is formed on a water outlet and can be pivoted relative to a main body, the pivoting of the sprinkler head taking place via a sprinkler mechanism which is driven by a turbine which rotates about a turbine axis and has a plurality of turbine blades, - the turbine being flowed through by a drive water flow which forms at least part of the overall water flow which flows from the water inlet to the water outlet, - it being possible for the turbine to be rotated in two opposite rotational directions, - each rotational direction being assigned one of two feed ducts with in each case at least one incident flow nozzle which defines an incident flow direction, - it being possible for one of the two feed ducts to be connected selectively to the water inlet via a switchover device which is arranged upstream of the two feed ducts, characterized in that the water path of the drive water flow is configured so as to be favourable in terms of flow and subject to low eddying, in such a way that a) one feed duct has a directional deflection between a first duct section of a feed duct (K11, K21), which first duct section is at least predominantly parallel to the turbine axis, and a second duct section (K12, K22) which runs substantially in the plane of the turbine blades radially outside the turbine blades, and is delimited by a first outer wall and by a first inner wall at the directional deflection, and the outer wall has a continuously curved profile without sharp bends, and/or b) a third duct section which ends at the incident flow nozzle, extends in arcuate form at least around the turbine and narrows monotonously in the process is delimited radially to the outside by a third outer wall which has a continuously curved profile of the arcuate shape in the circumferential direction without sharp bends, and/or c) the flow path runs from an incident flow nozzle which lies radially outside the turbine blades which form a ring around an interior space and is inclined by an incident flow angle of less than 45° with respect to the tangential of the turbine, via gaps which exist between adjacent turbine blades at the radially inner ends of the turbine blades, radially into the interior space, and those guide faces of the turbine blades which are loaded by the incident flow nozzle run in a concavely curved manner and run out into the interior space in a manner which is directed counter to the respective rotational direction, with an incident flow angle which is inclined with respect to a radial line. - the turbine being flowed through by a drive water flow which forms at least part of the overall water flow which flows from the water inlet to the water outlet, - it being possible for the turbine to be rotated in two opposite rotational directions, - each rotational direction being assigned one of two feed ducts with in each case at least one incident flow nozzle which defines an incident flow direction, - it being possible for one of the two feed ducts to be connected selectively to the water inlet via a switchover device which is arranged upstream of the two feed ducts, a) one feed duct has a directional deflection between a first duct section of a feed duct (K11, K21), which first duct section is at least predominantly parallel to the turbine axis, and a second duct section (K12, K22) which runs substantially in the plane of the turbine blades radially outside the turbine blades, and is delimited by a first outer wall and by a first inner wall at the directional deflection, and the outer wall has a continuously curved profile without sharp bends, and/or b) a third duct section which ends at the incident flow nozzle, extends in arcuate form at least around the turbine and narrows monotonously in the process is delimited radially to the outside by a third outer wall which has a continuously curved profile of the arcuate shape in the circumferential direction without sharp bends, and/or c) the flow path runs from an incident flow nozzle which lies radially outside the turbine blades which form a ring around an interior space and is inclined by an incident flow angle of less than 45° with respect to the tangential of the turbine, via gaps which exist between adjacent turbine blades at the radially inner ends of the turbine blades, radially into the interior space, and those guide faces of the turbine blades which are loaded by the incident flow nozzle run in a concavely curved manner and run out into the interior space in a manner which is directed counter to the respective rotational direction, with an incident flow angle which is inclined with respect to a radial line.