Water-saving Shower Faucet By: LaJerrika Carney & Ryan McDaniel Advisor: Dr. Mohammad Saadeh Class Professor: Dr. Cris Koutsougeras ET 493-01 - Senior Design Southeastern Louisiana University Computer Engineering Technology and Mechanical Engineering Technology

Background Today our faucets are equipped with the pressure–balancing control valve to help maintain water temperature in the shower Typically takes 15-30 seconds for water to become hot Little research has been done on the amount of water wasted while waiting for the water to heat

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

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).

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

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

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

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

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

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

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

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

Design