Changes

 PRACTICA foundation and ETC Energy have put together a manual on the Rota Sludge & Stone Hammer drilling: *[http://www.connectinternationalpracticafoundation.nl/fileswp-content/Rotauploads/PDF/Practica%20drilling%20Rs%20sludge20versie%20and201th%20stonehammer20september%20drilling2005.pdf Volume I Rota-sludge and stone hammer drilling, Part 1, Drilling Manualmanual]. Produced by [http://www.practicafoundation.nl PRACTICA Foundation], and [http://www.etc-international.org/index.php?id=41 ETC Foundation].*[http://www.practicafoundation.nl/wp-content/uploads/PDF/practica-production-rs-versie-1th-september-051.pdf Volume II Rota-sludge and stone hammer drilling, Part 2, Production Manualmanual]. Produced by [http://www.practicafoundation.nl PRACTICA Foundation] and [http://www.etc-international.org/index.php?id=41 ETC Foundation].*High quality manuals for roataRota-sludge drilling, well digging and other manual drilling and digging methods are available as well with Foundation from Connect International (http://www.connectinternational.nl/english/smartmodules/smart-tec/wells-boreholes/handdrilling). They are for free for organizations that are a member of Connect International member (cost: 50 Euro; see: http://www.connectinternational.nl/files/membership.pdf).