TY - JOUR
AB - LOWERING GROUND WATER LEVELS inches in diameter is used, and to it is attached a 6-foot piece of 1i-inch pipe. This is reduced to 1 inch for a hose connection, which is made permanent, the hose being about 4 feet long. After the trench has been dug as deep as possible without removing the water, the well points are jetted down by means of a piece of garden hose and a straight piece of ! or i-inch pipe, using the regular pump for this purpose and water from a supply tank. After the points have been driven they are connected to the header by slipping the hose over the ferrule-like nipples. A 4-inch triplex pump connected to the header will produce a dry ditch in a short time and by having the outfit connected in this way it leaves full working space in the trench. Frequent driving has a tendency to spoil the points.: The mains are laid with about 5 feet of cover and the banks of sand will stand up without any sheathing at that depth. One of the peculiarities of the sand' of that region is that before it has been disturbed in any way trenches 
TI - Discussion
JF - Journal - American Water Works Association
DO - 10.1002/j.1551-8833.1918.tb11652.x
DA - 1918-03-01
UR - https://www.deepdyve.com/lp/wiley/discussion-krfhvRgUT0
SP - 37
EP - 39
VL - 5
IS - 1
DP - DeepDyve
ER -