Shallow depth well drilling machine - has casing placed into borehole and holding non-return valve and pump

摘要

This well is drilled for obtaining ground water from the upper water conducting strata down to a depth of about ten metres. The water is drawn by manually or motor operated pump. The well is drilled by highly economical arrangement and the well is placed reliably and it is not blocked by sand. Ground samples are collected by a probe until, pref. an optimum, water carrying stratum is located. A well tube is sunk with the aid of the probe hole by rotation into the water carrying stratum. A pumping element with nonreturn valve is lowered into the casing tube. The upper part has conventional water drawing or closing element or an element for mounting a pump.