A wastewater spray distribution apparatus is operative to distribute wastewater produced by a sewage treatment system (10) onto a ground level (22) through operation of sprayers (118, 260). The exemplary sprayers include a manifold (142, 262) that includes outlet nozzles (158, 264) that can be readily removed and replaced. The exemplary manifold further includes interior areas bounded by surfaces that slope continuously downward from the outlet nozzles to the manifold inlet to assure the draining of water therefrom. Each of the nozzles include a base (140) which includes a liquid tight jacket (208). The jacket isolates components which facilitate movement of a rotatable hub (154), from water passing through the sprayer and other contaminants. A brake is provided in each nozzle and includes a liquid lubricant in the jacket that operates to limit rotational movement produced by the thrust of water passing from the outlet nozzles to assure that the sprayer operates at the appropriate rotational speed.

A mechanism is described to resist or prevent rotation of portions of an irrigation sprinkler riser when in its lowered or popped-down position. Hence, when a pedestrian walks over a lowered sprinkler or a lawn mower rolls over a sprinkler, for example, the riser will remain fixed in its rotational orientation relative to its outer body and surroundings. By resisting or preventing this rotation, this rotational locking mechanism prevents damage to the internal transmission, gears, and arc trip mechanisms of the sprinkler, as well as prevents the watering arc from being accidentally adjusted.

A wastewater spray distribution apparatus is operative to distribute wastewater produced by a sewage treatment system (10) onto a ground level (22) through operation of sprayers (118, 260). The exemplary sprayers include a manifold (142, 262) that includes outlet nozzles (158, 264) that can be readily removed and replaced. The exemplary manifold further includes interior areas bounded by surfaces that slope continuously downward from the outlet nozzles to the manifold inlet to assure the draining of water therefrom. Each of the nozzles include a base (140) which includes brake (207). A brake is provided in each nozzle and is adjustable to provide brake force to limit rotational movement produced by the thrust of water passing from the outlet nozzles to assure that the sprayer operates at the appropriate rotational speed. Alternative arrangements include manifolds including fixed or adjustable flaps and radially outwardly adjustable arms to adjust rotational properties.

A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.

A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.

A rotor nozzle structure has a chamber deployed with a rotor connecting to the water outlet and an adjusting element, wherein the rotor nozzle is capable of generating a directing stream and a wide-angle swirl stream, and the adjusting element is switchable by a rotational means for driving the rotor in a rotation or static status in the chamber.

A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.

A spray unit of a watering device is equipped with a structure of rotor nozzle, the spray unit is composed of a mounting member and a housing for defining a chamber, a rotor deployed inside the chamber; wherein, at least one stopper set on the inner side of the chamber near the water outlet side is correspondingly matched to multiple guide members on one end of the water outlet of the rotor, and it can be employable to the handy watering device.

A dishwasher assembly may include a dishwasher rack including at least one drinkware row configured to hold drinkware along a length of the rack, a sprayer configured to provide at least one stream of liquid into the drinkware, and a paddle wheel assembly arranged between the drinkware row and the sprayer and including at least one paddle configured to rotate responsive to force of the at least one stream of liquid against the at least one paddle, such that during rotation the at least one paddle is configured to variably deflect at least a portion of the stream onto a plurality of portions of an interior surface of the drinkware.

A rotor nozzle structure has a chamber deployed with a rotor connecting to the water outlet and an adjusting element, wherein the rotor nozzle is capable of generating a directing stream and a wide-angle swirl stream, and the adjusting element is switchable by a rotational means for driving the rotor in a rotation or static status in the chamber.