Water Consumption Project

21st Century Intl School Eco Club

Li Haoqing, Sunny (Club Leader)Li Yuhao, Jason (Vice-Leader)

Liu Shouzhi, Francisco (active Member)Gabe Phillips-Kress (Advisor)

with Thirst!

Thirst visit 21st CIS on April 14, 2014 40 minute presentation on China’s water

resources, consumption practices, conservation options

Post-presentation Quiz game with Shower Timers as prizes

21st CIS Eco Club wants more – Thirst suggests an Impact Analysis of Shower Timers!

Project Background

Consumption measurements in Cubic Meters (m3) taken from Jr. High Boy’s Dorm

1 Cold Water Meter (underground manhole) 2 Hot Water Meters (ground floor shower

rooms) Dates:

Normal consumption: May 7-15 Shower Timer consumption: May 16-26

Numbers: Students: @230 / Teachers: 7

Project Facts:Location, Dates, Sample

Normal Consumption (m3)

  Day 0-1 Day 1-2 Day 2-3 Day 3-4 Day 4-5 Day 5-6

Hot (west) 3.41 3.36 6.17 2.55 3.14 3.62

Hot (east) 4.1 2.89 3.5 4.14 4.11 3.41

Cold 8.54 9.12 9.02 8.08 8 8.4

Day 0 Day 1 Day 2 Day 3 Day 4 Day 5 Day 6

Hot (west) 2189.81 2193.22 2196.58 2202.75 2205.3 2208.44 2212.06

Hot (east) 2709.86 2713.96 2716.85 2720.35 2724.49 2728.6 2732.01

Cold 14289.67 14298.21 14307.33 14316.35 14324.43 14332.24 14340.64

Shower Timer Consumption (m3)

Day 0 Day 1 Day 2 Day 3 Day 4 Day 5 Day 6

Hot (west) 2215.25 2222.28 2225.43 2228.38 2232.72 2,237.06 2,241.34

Hot (east) 2735.52 2739.14 2742.54 2746.04 2,752.54 2,760.30 2,767.90

Cold 14349.05 14361.01 14369.07 14377.53 14386.64 14,395.75 14,404.86

  Day 0-1 Day 1-2 Day 2-3 Day 3-4 Day 4-5 Day 5-6

Hot (west) 7.03 3.15 2.95 4.34 4.34 4.28

Hot (east) 3.62 3.4 3.5 3.5 7.76* 7.6*

Cold 11.96 8.06 8.46 9.11 9.11* 9.11

Normal & Timer comparison

  Day 0-1 Day 1-2 Day 2-3 Day 3-4 Day 4-5 Day 5-6

Hot w-norm 3.41 3.36 6.17 2.55 3.14 3.62

timer 7.03 3.15 2.95 4.34 4.34 4.28

             

Hot w-norm 4.1 2.89 3.5 4.14 4.11 3.41

timer 3.62 3.4 3.5 3.5 7.76* 7.6*

             

Cold norm 8.54 9.12 9.02 8.08 8 8.4

timer 11.96 8.06 8.46 9.11 9.11* 9.11

Almost no difference in water consumption patterns between 2 time periods – WHY?

Possible Reasons: Decrease – ‘Novelty effect’? Steady rate – Restricted showering times anyway Increase – 21CIS Sports Festival Increase – Hotter outdoor temperatures Increase/Steady rate – Cultural habits

Other sources tapping water: toilets, sinks, sprinklers, etc.

Conclusion & Analysis

Are they really useful? How can they be made more useful?

Q: How to improve the impact of shower timers?