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Natural or artificial ground catchment and Lined sub-surface tanks

10 bytes removed, 00:18, 9 November 2012

→‎Reference manuals, videos, and links

* However, care needs to be taken with cheap linings – in some areas with swelling clay and differential settlement, linings can easily crack, as has often been observed in some areas. The areas where cheap linings might work therefore may be site-specific, and depend on the clay content of the soil. For plastic linings, experience from India shows that these can be punctured by rodents, crabs or insects if there is no rodent/insect-proof layer before the plastic.

==Reference manualsManuals, videos, and links==

* [http://www.unep.or.jp/ietc/publications/techpublications/techpub-8a/sand.asp Sand Abstraction]. Sourcebook of Alternative Technologies for Freshwater Augumentation in Africa. United Nations Environment Programme.

* [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDcQFjAB&url=http%3A%2F%2Fwww.ijest.info%2Fdocs%2FIJEST11-03-01-093.pdf&ei=eAB_T-bNMeTfiAKZtoH0Ag&usg=AFQjCNE5fvsBiHjyMK9xwYxL9qwsE094kw&sig2=vg0VXVBOW94zSxFkv-LoFQ Evaluation of the Sand Abstraction Systems for Rural Water Supply: the case of Lupane District, Zimbabwe]. Vol 3, No. 1, January 2011.

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