1) Middle Air Pressure DTH Hammers believes that when the electric pump is repaired in a ground well, after the electric pump is lifted out of the well casing, if the wellhead is not properly sealed, some waste will be artificially thrown into the well. These thrown objects will block The normal upwelling of the water intake section at the bottom of the well caused a decrease in the water output when the electric pump lifted water.

(2) After the sand inrush occurs in the ground well, if the sand inrush break point cannot be sealed in time, part of the stratum's sediment will be lifted into the pipeline by the electric pump, and part of it will settle to the bottom of the well. With the large amount of sediment entering In the well, the water filter pipe part of the well pipe will be backfilled with sediment, causing the water in the water intake section to not rise normally, so the water output of the electric pump will decrease when the water is lifted.

(3) The filter pipes of some geothermal well casings are filters made of wire wrapping. When the well is left unused without water, the wire wrapping on the filter reacts with some minerals in the water to calcify, and the calcifications will block the water channel. , Causing the water outside the formation in the water intake section to not flow into the well, and the water output of the Montabert Shank Adapters decreases when the electric pump lifts the water.