[[Image:Plastic-lined_tank.PNG|thumb|right|150px|In Nicaragua earth is used to construct open storage tanks ]]
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! width="50%" style="background:#efefef;" | Advantages
! style="background:#ffdead;" | Disadvantages
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| valign="top" | Low cost alternative to metal or ferro-cement tanks.<br>
| valign="top" | <br>
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{{procontable | pro=