a well point is a pipe with openings large enough to allow water to ,enter and small enough to keep

the water-bearing formation in place. well point suitable for hand driving are available in sizes  from

1-1/4 to 2 inches in diamater and from 18 to 60 inches long, the size of openings in the well point is

determined by the relative grain size of the material in the water-bearing formation, some of the first

grains adjacent to the wellpoint should be removed by pumping to make the well more productive.