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Plastic-lined tank

No change in size, 21:18, 13 April 2012

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A low cost alternative to metal or ferrocement tanks for storing of water are plastic-lined tanks. Several models have been developed, for example:

* A cylinder of sheet metal containing a large (eg. 1 ,500 liter) reinforced plastic bag . * a A plastic liner reinforced with a 10 ,000 liter plastic bag, installed in a hole in the ground.

Open storage tanks can be made of earth. If clay is not available, a plastic lining is needed to stop water from leaking away. Linings can be made of standard plastic sheet glued together with the tar normally used to repair roofs. The plastic must be covered with earth to prevent it from being exposed to the sun.

==Suitable conditions ==

Rainwater harvesting requires at least an annual rainfall of 100-200 mm.

Depending on the size of the design; the tank has a capacity of 1 ,500 to 10 ,000 liter.

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* [http://www.ideorg.org www.ideorg.org ]

* [http://www.practicafoundation.org www.practicafoundation.org ]

==Acknowledgements==

Winona

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