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Percussion - Stone hammer

22 bytes added, 20:41, 22 October 2015

→‎Suitable conditions

- Stone hammer wells are much simpler, less maintenance problems (No “high-tech” parts like carburetor, gearbox etc.) compared to machine drilled wells.<br>

| valign="top" | - It is difficult to remove the drill bit after it has been hammered into the formation. <br>

- The stone hammer is only successful when larger boulders are not encountered. Smaller ones are okay. <br>

- It is slower than machine drilled wells.

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