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Underground tank

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→‎Costs

==Costs==

* Material costs for [[EMAS cistern]] tanks consist of sand and four 50 kg bags of cement for each tank.

* Subsurface ferrocement tanks of 60 m3 costs about US$ 1,900.

* Underground tanks can be high and variable in cost per m3 of storage (averages around US$30-40 per m3 of storage, sometimes a lot more depending on various factors). Sub-surface hemispherical tanks made from stone masonry and bricks/cement in Ethiopia cost in the range of 113 - 219 Euro per m3 of storage including all costs such as trucked water for construction and solidity of construction (more solidly built tanks in clay areas cost more). Therefore costs currently limit the replicability of the technology for poorer families and potential to scale things up.

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