Baptist Drilling Method
The Baptist Drilling Method is a hybrid between sludging and percussion drilling.
The Baptist Drilling Method is a method of borehole construction that utilizes a valve incorporated into the bit at the bottom of the drill stem to maintain pressure during the drilling process. The main action that is used for power is a rope and pulley system.
Water for All , Arrakis, and others
Goal 6: Clean water and sanitation
Communities without access to clean drinking water