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[[Image:Emas4.png|thumb|right|150px|Installing the lever, used to move the drill stem up and down.]]
Soft Clay is the easiest to drill, sometimes we drill is suitable conditions 40 meters can be drilled in this material 40 meters in one single day. It is true that when we hit a cave some drill liquid runs away. But that happens In 100 well one time and never made drilling impossible. We need for For every meter , between 10 and 20 Liters litre of wateris needed, including inlcuding washing. For a 20 meter well 1 , one or two barrels of water are enough. Is that much?
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