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Cost Effective Rain Water Collection and Storage Solutions By Josie, Alex, Jagnesh, Justin, Steve and Matt

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Devikulam Tamil Nadu, India http://www.ewb.org.au/explore/initiatives/2011ewbchallenge

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http://www.buzza.in/Gramap2/Devikulam_information.html

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photos from http://www.buzza.in/Gramap2/Devikulam_photos.html info from http://vista.shef.ac.uk/webct/urw/lc19897.tp0/cobaltMain Frame.dowebct http://vista.shef.ac.uk/webct/urw/lc19897.tp0/cobaltMain Frame.dowebct (survey) http://vista.shef.ac.uk/webct/ContentPageServerServlet/br iefs/resources/Devikulam_Taps.pdf http://vista.shef.ac.uk/webct/ContentPageServerServlet/br iefs/resources/Devikulam_Map.pdfhttp://www.buzza.in/Gramap2/Devikulam_photos.htmlhttp://vista.shef.ac.uk/webct/urw/lc19897.tp0/cobaltMain Frame.dowebcthttp://vista.shef.ac.uk/webct/urw/lc19897.tp0/cobaltMain Frame.dowebct http://vista.shef.ac.uk/webct/ContentPageServerServlet/br iefs/resources/Devikulam_Taps.pdf http://vista.shef.ac.uk/webct/ContentPageServerServlet/br iefs/resources/Devikulam_Map.pdf

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http://www.unep.or.jp/ietc/publications/urban/urbanenv -2/9.asp http://www.sintex.in/solutions.html

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Options: Tank Construction Bamboo Tank -sustainable: recycle bamboo baskets skill for the villagers -varying capacities -bamboo plantation far from village -relatively expensive -bamboo is slow to mature Jars -sustainable: skill for villagers local / readily available materials -form of income -reusable moulds -varying capacity/heights -heavy / hard to move -danger of stale water

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Jar being made Info. and Pictures from: http://www.wateraid.org/http://www.wateraid.org/

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Options: Guttering Materials Galvanised Steel -long life -corrosion can be overcome -recyclable / reusable -more distributors / manufacturers -heavier -relatively expensive -water that runs down steel guttering is cleaner PVC - cheap -lightweight -less weather resistance -very difficult to recycle, it is a thermoset polymer -harder to attach -much shorter life span Wood -has a short lifespan -not a very clean form of guttering

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Gutter Setup

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Options: Filter Materials Pebbles -cleaner water -not sufficient on its own Gravel -prevents clogging of pipes with larger obstructions -not sufficient on its own Sand -pre filter for particulates -not sufficient on its own Charcoal -absorbs agro-chemical contaminants -need a large amount per person / litre (4.5kg per person per year) - readily available in villages These will be combined to make the filter as it will be very cheap

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Example of a Filter System

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Our Final Solution Galvanised steel guttering Jar storage tanks Sand, Charcoal, Gravel filter Hand pump

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http://www.nabuur.com/en/village/nakyerongosa/project/task/domestic- rainwater-harvesting-through-construction-water-jars Our Final Solution

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Costing and Future Planning The initial cost of the materials needed to build the rain-harvesting mechanism for each house. Materials Cost Charcoal - Gravel - Sand - Hand pump (Suction Pump) 37 Jars 35 Galvanised steel 40

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Convenience Safe water with adequate sanitation. The possibility of maintenance by village workers Have scheduled maintenance instead of breakdown maintenance. Ensure this development boosts their livelihood by creating commerce, industry and developments for everyone in Devikulam. Reference Community Water Supply; The handpump Option, Rural Water Supply Project. UNDP/World Bank ISBN 08213-0850 1986. http://www.wateraid.org/uk/what_we_do/sustainable_technologies/technology_notes/244.asp http://villageearth.org/appropriate-technology/appropriate-technology-sourcebook/water-supply-and-sanitation Aims and Benefits