Why does the hotel secretly drill wells to pump water?

It is not illegal to drill wells to pump water.

The principle of drilling and pumping is:

Under the action of atmospheric pressure, the circulating liquid flows from the sedimentation tank to the bottom of the well along the annular gap of the borehole through the backwater ditch. At this time, the turntable drives the drill pipe and drives the drill bit to rotate for drilling. The negative pressure established by the suction of the mud pump sucks the cuttings mud into the inner cavity of the drill pipe, then rises to the faucet and is discharged into the sedimentation tank through the mud pump. The precipitated circulating fluid continues to flow into the wellbore, forming reverse circulation drilling operation.

Structure of drilling machine:

Traction type, vehicle-mounted type and vehicle-mounted back machine type. General drilling rig consists of diesel engine, friction clutch, gearbox, transfer case, transmission shaft, mud pump, fresh water pump, vacuum pump, rotary table, faucet, hoist, hydraulic system, control mechanism, mast, drilling tool and frame.