New Method of Sinking Wells
A recently invented method of sinking wells and constructing the casing and other parts aims to seal the well hole through the ground around the screen to a depth sufficient to assure the maintenance of the well water in pure condition. To accomplish this the cavity in the ground is filled with a material, for example clay, to a depth down into a water impervious stratum in the ground.
Accordingly, the well-screen (17) is sunk in the usual manner, but through a cavity or recess in the ground near the surface and lined with a supplemental water-tight casing (16) surrounding the upper part only of the well-screen, such cavity and outer shell extending a limited distance down into the ground into or through such clay stratum.
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