Tube well
（重定向自Tubewell）
![Borehole of a tube well, which is usually 30 metres (98 ft) deep or more.](/Images/godic/202502/18/Borehole_tubewell2323.jpg")
![Outlet of a tube well to a temporary reservoir.](/Images/godic/202502/18/Tube_well2323.jpeg")
![Diagram of a tube well.](/Images/godic/202502/18/Rizwan_tubewell2324.jpeg")
A tube well is a type of water well in which a long 100–200 millimetres (3.9–7.9 in) wide stainless steel tube or pipe is bored into an underground aquifer. The lower end is fitted with a strainer, and a pump lifts water for irrigation. The required depth of the well depends on the depth of the water table.