Well Point Dewatering

Sand tubing prodder.

Well point dewatering.

As soon as the pump is attached to a well point dewatering system you just need to start the engine and you can head off home. Pre drill and hand spearing with water jetting system. Wellpoint dewatering is a simple yet efficient method of lowering the water table in excavations. How a well point dewatering pump works.

What is wellpoint dewatering. Wellpoint dewatering is widely used for excavations of shallow depths especially for pipeline trench excavations. Wellpoint dewatering also known as spear point is an effective dewatering technique. The versatile solution ideal for shallow aquifers where the water level needs to be lowered no more than 15 or 20 feet griffin well point systems allow you to pump anything from a few gallons per minute in fine sandy silts to thousands of gallons per minute in coarse sands and gravels.

Wellpoints are 50mm tubes with slots near the bottom that are inserted into the ground from which water is drawn by vacuum generated with a dewatering pump. They can cope with any combination of air and water with no need for a separate priming system. The pt well point pumps are positive displacement pumps and fully self priming. While well pointing is used to dewater an excavation it also is used to stabilize soils with low permeability with some silts or sandy silts.

Mwi wellpoint dewatering systems are specifically suited for removing water from unsettled or unstable ground including weak foundations and trenches. Wellpoint systems well points. The ground water table is influenced by means of drawing it down through the well points spears that are installed around the excavation area. Below methods used to install wellpoint dewatering system.

A typical wellpoint system consists of a series of small diameters wells known as wellpoints connected via a header pipe. Hand spearing with water jetting system. In appropriate ground conditions a wellpoint system can be installed speedily and made operational rapidly. A wellpoint dewatering system consists of a series of shallow wells known as wellpoints which are installed at a pre determined depth and appropriate spacing around an excavation.