Water sprayer

Abstract

A water spray gun includes a body providing a flow path, a head configured to rotate relative to the body, and a chemical container coupled to body. The head includes a plurality of nozzles that may be rotated into and out of the flow path. At least one of the plurality of nozzles includes a group of small orifices. The chemical container is configured to provide chemicals to the flow path.

1 . A water spray gun, comprising:
 a body providing a flow path;   a head configured to rotate relative to the body and comprising a plurality of nozzles that may be rotated into and out of the flow path, wherein at least one of the plurality of nozzles comprises a group of small orifices; and   a chemical container coupled to body and configured to provide chemicals to the flow path.   
     
     
         2 . The water spray gun of  claim 1 , wherein the group of small orifices is configured to condition water flowing along the flow path by separating the flow into smaller parallel streams to reduce turbulence in the water. 
     
     
         3 . The water spray gun of  claim 1 , wherein the plurality of nozzles comprises a larger opening and a smaller opening, wherein the larger opening allows a greater flow rate through the spray gun than the smaller opening. 
     
     
         4 . The water spray gun of  claim 3 , wherein the larger and smaller openings are each single openings. 
     
     
         5 . The water spray gun of  claim 4 , wherein the orifices of the group of small orifices are arranged in a symmetric pattern. 
     
     
         6 . The water spray gun of  claim 4 , wherein the plurality of nozzles further comprises a second group of small orifices. 
     
     
         7 . The water spray gun of  claim 6 , wherein the group of small orifices provides a greater flow rate than the second group of small orifices at a given water pressure. 
     
     
         8 . The water spray gun of  claim 1 , further comprising a trigger configured to control the communication of chemicals from the chemical container to the flow path. 
     
     
         9 . The water spray gun of  claim 8 , further comprising a chemical conduit having an outlet integrated with each nozzle of the plurality of nozzles. 
     
     
         10 . The water spray gun of  claim 9 , wherein the outlet of the chemical conduit is centered within the flow path of each nozzle of the plurality of nozzles. 
     
     
         11 . A control system for a water pump assembly that uses water to communicate control signals to the pump, comprising:
 a water pump having an inlet and an outlet;   a spray gun configured to receive water from the outlet of the water pump via a hose connected to the outlet, the spray gun comprising:
 a body providing a flow path through the water spray gun; and 
 a head configured to rotate relative to the body and comprising a plurality of nozzles that may be rotated into and out of the flow path of the spray gun, wherein the plurality of nozzles comprises a larger opening and a smaller opening, wherein the larger opening allows a greater flow rate through the spray gun than the smaller opening; and 
   a sensor configured to provide a signal to control the water pump based upon a characteristic of the water flow that corresponds to whether the larger or smaller opening of the spray gun is being used.   
     
     
         12 . The control system of  claim 11 , wherein at least one of the plurality of nozzles comprises a group of small orifices. 
     
     
         13 . The control system of  claim 12 , wherein the group of small orifices is configured to condition water flowing along the flow path by separating the flow into smaller parallel streams to reduce turbulence in the water. 
     
     
         14 . The control system of  claim 11 , wherein the larger and smaller openings are each single openings. 
     
     
         15 . The control system of  claim 11 , further comprising a chemical conduit having an outlet integrated with each nozzle of the plurality of nozzles. 
     
     
         16 . The control system of  claim 11 , wherein both the inlet and the outlet of the water pump have garden hose connectors, and wherein the spray gun is configured to be fastened to a garden hose. 
     
     
         17 . The control system of  claim 16 , wherein the sensor is integrated with the water pump and the setting of the spray gun is communicated through the garden hose to the sensor. 
     
     
         18 . The control system of  claim 17 , wherein the sensor is a flow rate sensor. 
     
     
         19 . The control system of  claim 18 , wherein the sensor provides a signal to engage the water pump when the larger opening is being used. 
     
     
         20 . The control system of  claim 19 , wherein the sensor provides a signal to disengage the water pump when the smaller opening is being used.