Changes

PRACTICA foundation and ETC Energy have put together a manual on the Rota Sludge & Stone Hammer drilling: [http://www.connectinternational.nl/files/Rota%20sludge%20and%20stonehammer%20drilling.pdf Volume I Drilling Manual], [http://www.practicafoundation.nl/wp-content/uploads/PDF/practica-production-rs-versie-1th-september-051.pdf Volume II Production Manual] Manuals are available as well with Foundation Connect International (http://www.connectinternational.nl/english/smartmodules/smart-tec/wells-boreholes/handdrilling). They are for free for organizations that are a Connect Inetrnational member (cost: 50 Euro; see: http://www.connectinternational.nl/files/membership.pdf).