Illuminated water sprayer

1. A water sprayer outlet mechanism configured for use with a pool, the water sprayer outlet mechanism having an inlet and an outlet nozzle in fluid communication with the inlet, the outlet nozzle comprising:

an elongate hole configured to deliver water from the inlet to the pool, a planar projection of the elongate hole having a lateral axis and a central axis of symmetry, the elongate hole defined by:

a first elongate section;

wherein the first elongate section is calculated with a formula:

Y=a 4 x 4 +a 2 x 2 +a 0

wherein:

x is a value on the lateral axis;

Y is a value on the central axis;

a 0 ≥1;

10 −5 ≥a 4 ≥10 −12 ; and

10 −2 ≥a 2 ≥10 −6 ;

a second elongate section;

a first end section that connects the first and second elongate sections; and

a second end section that connects the first and second elongate sections;

wherein a width of the elongate hole measured between the first and second elongate sections increases from the central axis to each of the first and second end sections.

2. The water sprayer outlet mechanism of claim 1 , wherein a 0 =1.5.

3. The water sprayer outlet mechanism of claim 1 , wherein:

10 −7 ≥a 4 ≥7*10 −10 ; and

1.4*10 −3 ≥a 2 ≥3*10 −4 .

4. The water sprayer outlet mechanism of claim 1 , wherein:

a 4 =9*10 −10 ; and

a 2 =5*10 −4 .

5. The water sprayer outlet mechanism of claim 1 , wherein:

the first elongate section is curved; and

the second elongate section is linear.

6. The water sprayer outlet mechanism of claim 1 , wherein the elongate hole is symmetrical about the lateral axis.

7. The water sprayer outlet mechanism of claim 1 , wherein the first and second elongate sections are curved.

8. The water sprayer outlet mechanism of claim 1 , wherein the elongate hole is disposed on an arcuate surface of the outlet nozzle, such that the first and second elongate sections extend vertically downward from the central axis to each of the first and second end sections.

9. The water sprayer outlet mechanism of claim 1 , wherein the outlet nozzle narrows from the inlet toward the elongate hole.

10. The water sprayer outlet mechanism of claim 1 , further comprising:

a power generating mechanism in fluid communication with the inlet and the outlet nozzle; and

a light source powered by the power generating mechanism and configured to illuminate the water.

11. The water sprayer outlet mechanism of claim 10 , wherein the power generating mechanism comprises:

a cover having a plurality of deflecting plates; and

an impeller having a plurality of blades arranged substantially perpendicular to the plurality of deflecting plates.

12. The water sprayer outlet mechanism of claim 11 , wherein:

the power generating mechanism has a longitudinal axis;

the deflecting plates of the cover are inclined to the right relative to the longitudinal axis; and

the blades of the impeller are inclined to the left relative to the longitudinal axis.

13. The water sprayer outlet mechanism of claim 11 , wherein:

the power generating mechanism has a longitudinal axis;

the deflecting plates of the cover are inclined approximately 25-45 degrees relative to the longitudinal axis; and

the blades of the impeller are inclined approximately 55-65 degrees relative to the longitudinal axis.

14. The water sprayer outlet mechanism of claim 10 , wherein the power generating mechanism further comprises:

a stator;

a rotor coupled to the impeller and surrounding the stator; and

a motor operably coupled to the stator.

15. The water sprayer outlet mechanism of claim 1 , wherein the inlet is perpendicular to the outlet nozzle.

16. The water sprayer outlet mechanism of claim 1 , wherein the inlet receives return water from the pool.

17. The water sprayer outlet mechanism of claim 1 , wherein the outlet nozzle is pivotally coupled to the inlet via a ball joint.

18. The water sprayer outlet mechanism of claim 1 , wherein the water sprayer outlet mechanism is one of L-shaped and T-shaped.

19. The water sprayer outlet mechanism of claim 1 , further comprising a drain outlet in fluid communication with the inlet and the outlet nozzle.

20. The water sprayer outlet mechanism of claim 19 , further comprising a check valve in fluid communication with the drain outlet, wherein the check valve is configured to close the drain outlet until a pressure in the water sprayer outlet mechanism exceeds a predetermined pressure on the check valve.

21. The water sprayer outlet mechanism of claim 1 , wherein the outlet nozzle includes a wave-shaped water passageway.

22. The water sprayer outlet mechanism of claim 1 , further comprising at least one bracket configured to couple the water sprayer outlet mechanism to a support structure of the pool.

23. A water sprayer outlet mechanism configured for use with a pool, the water sprayer outlet mechanism having an inlet and an outlet nozzle in fluid communication with the inlet, the outlet nozzle comprising:

an elongate hole configured to deliver water from the inlet to the pool, a planar projection of the elongate hole having a lateral axis and a central axis of symmetry, the elongate hole defined by:

a first elongate section;

a second elongate section;

wherein the first and second elongate sections are calculated with a formula:

Y=a 4 x 4 +a 2 x 2 +a 0

wherein:

x is a value on the lateral axis;

Y is a value on the central axis;

a 0 ≥1;

5*10 −6 ≥a 4 ≥5*10 −13 ; and

5*10 −3 ≥a 2 ≥5*10 −7 ;

a first end section that connects the first and second elongate sections; and

a second end section that connects the first and second elongate sections;

wherein a width of the elongate hole measured between the first and second elongate sections increases from the central axis to each of the first and second end sections.

24. The water sprayer outlet mechanism of claim 23 , wherein a 0 =1.5.

25. The water sprayer outlet mechanism of claim 23 , wherein

5*10 −8 ≥a 4 ≥3.5*10 −10 ; and

7*10 −4 ≥a 2 ≥1.5*10 −4 .

26. The water sprayer outlet mechanism of claim 23 , wherein

a 4 =4.5*10 −10 ; and

a 2 =2.5*10 −4 .

27. A water sprayer outlet mechanism configured for use with a pool, the water sprayer outlet mechanism having an inlet and an outlet nozzle in fluid communication with the inlet, the outlet nozzle comprising:

an elongate hole configured to deliver water from the inlet to the pool, a planar projection of the elongate hole having a lateral axis and a central axis of symmetry, the elongate hole defined by:

a first elongate section;

a second elongate section;

a first end section that connects the first and second elongate sections; and

a second end section that connects the first and second elongate sections;

wherein a width of the elongate hole measured between the first and second elongate sections increases from the central axis to each of the first and second end sections;

a power generating mechanism in fluid communication with the inlet and the outlet nozzle, the power generating mechanism comprising:

a cover having a plurality of deflecting plates; and

an impeller having a plurality of blades arranged substantially perpendicular to the plurality of deflecting plates, wherein the blades of the impeller narrow from the inlet toward the outlet nozzle; and

a light source powered by the power generating mechanism and configured to illuminate the water.

28. The water sprayer outlet mechanism of claim 27 , wherein each blade of the impeller has a curved surface facing the cover.

29. The water sprayer outlet mechanism of claim 27 , wherein the cover of the power generating mechanism further comprises a conical diversion body arranged to direct water toward the deflecting plates of the cover.

30. A water sprayer outlet mechanism configured for use with a pool, the water sprayer outlet mechanism having an inlet and an outlet nozzle in fluid communication with the inlet, the outlet nozzle comprising:

an elongate hole configured to deliver water from the inlet to the pool, a planar projection of the elongate hole having a lateral axis and a central axis of symmetry, the elongate hole defined by:

a first elongate section;

a second elongate section;

a first end section that connects the first and second elongate sections;

a second end section that connects the first and second elongate sections;

wherein a width of the elongate hole measured between the first and second elongate sections increases from the central axis to each of the first and second end sections;

a drain outlet in fluid communication with the inlet and the outlet nozzle;

a check valve in fluid communication with the drain outlet, wherein the check valve is configured to close the drain outlet until a pressure in the water sprayer outlet mechanism exceeds a predetermined pressure on the check valve; and

a knob configured to adjust the predetermined pressure on the check valve.