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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?