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Rooted Reservoir Well

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{{Language-box|english_link= Rooted Reservoir Well | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=蓄水箱内置井 | indonesian_link= Coming soon | japanese_link= Coming soon }}[[Image:rooted reservoir well.png|right|80px]]

[[Image:refilled well.jpg|thumb|right|200px|Refilled well]]

[[Image:rooted reservoir well.jpg|thumb|right|200px|rooted reservoir well]]

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Refilled wells are commonly used in Asia and in other parts of the world. A well is excavated with temporary walls. A ferrocement tank is then placed in the bottom. A pipe and pump are installed, after which the well is refilled with soil. The advantage of this is that building them is very inexpensive, since the walls do not need to be coated. The water is also protected better against contamination. However when the water table drops during years of drought, no possibility exists to deepen them.

Excavate around the EMAS well down to a few meters below the phreatic level. When the excavation is finished, the pre manufactured ferro cement tank is brought down, above the well pipe. Some holes are made at the bottom of the tank for the pipe to pass through. When pumping, water will flow through this hole from the tank to the well, partially feeding the pump. At times when no pumping takes place, water at the well rises, filling the tank once more. Thus the tank compensates the higher demand of water when pumping. The size of the tank depends on the volume of the well drilled, and on the continuous demand. The usual size is 150 liters (regarding how to set up the ferro cement tank, please see the page [[Classical ferrocement tank | Classical ferrocement tank]]).

 

 

===Manuals, videos and links===

* [http://www.indiawaterportal.org/articles/well-revival-effort-sees-many-other-benefits Well revival effort sees many other benefits] A community drive to revive wells in Mokhla talab near Udaipur results in water security for longer periods of time as well as making leaders out of women.

* [http://www.indiawaterportal.org/articles/experiments-community-wells Experiments with 'community wells'] Mobilized farmers in Dhule, Maharashtra, show how communities can use groundwater as a common resource in an organised and collective manner.

 

 

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