How to make a ‘wall cistern’ to collect rainwater with plastic bottles

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To save water, it is enough to take it from the sky, and for this, It is enough to reuse plastic bottles and jugs in the system invented by a Colombian architect and his children.. For several years, Eko-muro H20 has been deployed with great success in numerous locations in several South American countries, guaranteeing access to an otherwise difficult resource.

The system basically consists of creating a vertical set of reused PET containers with a capacity of 3 or 2.5 liters (although they can be more) interconnected. they form a wall-shaped water tank that takes up minimal space.. It is capable of providing a home or a small community (depending on the size of the ekomuro).

Wall cistern example echo

The authors of the invention, which received numerous awards and recognitions, including the title of a finalist in the Science in Action awards scientific american They state that in 2012 there were Cistern Wall-type structures on the market, but they were made of high-cost fiberglass and were scarcely available in local stores.

Ekomuro at a school in Bogotá Oscar Alberto Perez-Lopez

The Ekomuro system, on the other hand, performs the same function, but in an ecological way and with simple detailing. All that is needed is something that is unfortunately abundant everywhere: discarded plastic containers.

The remarkable installation that this system has in isolated towns and villages of Colombia and other Latin American countries is made possible by community involvement. Thus, while bottles and carafe are recovered in campaigns carried out through cooperatives, schools or all kinds of events, the puncture of the caps (necessary to convey different containers to each other) is done jointly, and this ensures an increase in production. walls.

Basically, the whole process consists of let the rainwater reach the first bottles of the structure (the ones at the bottom) and from there the others are filled in succession. The set has sections where water overflows as soon as it is completely filled.

Structure of Ekomuro echo

Thanks to a filter, people can thus obtain drinking water. “People in various parts of Colombia do not have enough drinking water. It is very easy and very inexpensive to make a plastic bottle rainwater collector at home,” said Ricardo Alba, author of the project, along with his children, Ricardo and Jessica.

On the other hand, the second generation Ekomuros goes even further and on the one hand, it stores rainwater and on the other hand recycles wastewater that can be reused for various purposes when properly treated.

Ekomuro H20 website: https://ekomuroh2o.wixsite.com/ecoh2o

…….

Environment department contact address:[email protected]

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