1. Water-saving Shower Faucet
By:
LaJerrika Carney & Ryan McDaniel
Advisor: Dr. Mohammad Saadeh
Class Professor: Dr. Cris Koutsougeras
ET Senior Design
Southeastern Louisiana University
Computer Engineering Technology and Mechanical Engineering Technology

2. Background
Today our faucets are equipped with the pressure–balancing control valve to help maintain water temperature in the shower
Typically takes seconds for water to become hot
Little research has been done on the amount of water wasted while waiting for the water to heat

3. Purpose
Design a system that will reroute the water flow to the shower head and store leftover water.
While adjusting the temperature through a 2-way solenoid and a heating element to prevent water wastage

4. Deliverables
1. Collect data through measuring the actual amount of wasted water and the desired water temperature.
(September – mid October 2014) 2 weeks
2. Select and identify thermal sensor with measuring ranges in the vicinity of the desired temperature.
(Mid-October – End-November 2014) 6 weeks
3. Select equipment to be used in building a prototype, this may include:
a. Water heater (or a heating element)
b. 2-way solenoid (connected to the major water tank and diverts water between the reservoir and the tub spout).

5. c. Water tanks
d. Micro-controller
e. Actuating device (i.e.: high torque servo motor)
f. Pipes and hoses (PVC pipes, fittings, etc)
(October – End-November 2014) 8 weeks
 4. Independent research on materials and project.
(November 2014 – January 2015)
5. Control the valve through the microcontroller using data collected from the sensor.
(End-November 2014 – End-February 2015) 12 weeks
6. Build the prototype perform final testing.
(March 2014 – End-April 2015) 8 weeks

6. Challenges Finding the correct parts.
Making sure our prototype is stable.
Learning how to program the Arduino with the various parts used.

7. Detailed List of Parts Quantity Item Price Total 1
Water heater element
$8.43
3 way solenoid
$312.00 4
1 x 10 pressure pvc pipe
$3.76
$15.04 5
1” Adapter (slip& threaded) (23864)
$0.77
$3.85 2
1” Tee (slip) (23876)
$0.86
$1.72

8. 2
1” Elbow (slip) (23870)
$0.66
$1.32 1
1 x ½ ft Bushing (slip) (23919)
$0.87
Temperature Sensor (TE200AP5B2)
$23.20
RectorSeal 4-oz Pipe Compound (45364)
$7.99
20 Gallon Water Tank
$97.01
1" 2way 2position Electric Solenoid Valve
$39.99
DC 12V 1/4 Inch Electric Solenoid
$9.96

9. 1
3/4" MNPT x 1/2" FNPT Nylon Reducer Bushing
$0.96 2
1/2" MNPT x 1/4" FNPT Nylon Reducer Bushing
$0.89
$1.78
1/2" NPT x 1" Hose ID Black HDPE Adapter
$1.04
10 Gallon Water Tank
$99.52

10. Parts Temperature sensor Heating element Arduino UNO
3 two Way Solenoids
Arduino UNO

11. 1” Adapter For Main Water Tank
Parts Continued
1” PVC Pipe
1” to ½” Adapter
1” Adapter For Main Water Tank
PVC Pipe Sealant

12. Parts Continued 1” Tee 1” Elbow Ball Valve 10 gallon tank
Water pump

13. Design