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Plastic-lined tank

850 bytes added, 22:21, 13 April 2012

→‎Costs

==Costs==

Plastic lined tanks made from weaker/cheaper wall materials have proved to be cheap: US$6.7 - US$10 per m3 of storage (e.g. 6m3 for US$40 for the sheeting & iron sheets, while labour/mud provided by householder). These tanks are made using a wood/mud frame with plastic lining the inside. While the feedback from trials in Uganda indicate that the plastic does not last more than 2 years (due to being punctured by something), because the plastic sheet is cheap ($1.6 per m3 of storage), it seems that this recurring cost is a lot more affordable than much larger one-off costs for more robust tanks. Issues with this kind of tank in some places is that termites can eat the wood. Round bamboo tanks are made in a similar way where bamboo gives external support to a plastic lining: costs are US$10 - US$15.5 (e.g. 1.5m3 for US$23; 23m3 for US$233).

==Field experiences==

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