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Manuals, videos and links
===Manuals, videos and links===
* [http://www.lboro.ac.uk/well/resources/technical-briefs/34-protecting-springs.pdf Protecting Springs] or ([http://www.washdoc.info/docsearch/title/116185 alternative link]), produced by [http://www.lboro.ac.uk/departments/cv/wedc WEDC, Loughborough University].
* [httphttps://www.paceprojectdropbox.netcom/UserFiless/File/Watergbqab5grp8fsq96/Spring%20protection.pdf ?dl=0%3Fdl%3D1 Spring Protection, Action sheet 19.] by [http://www.paceproject.net/ PACE].
* [http://www.wateraid.org/uk/what_we_do/sustainable_technologies/technology_notes/245.asp Spring Protection] by WaterAid.
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