Water Well Casing Replacement

Bilfinger water technologies can provide the production casing which connects to the well screen.
Water well casing replacement. A casing can last for many years but under the right circumstances it can be damaged and need to be repaired. Construction of los angeles aqueduct 1907 1913. Once you have identified a leak you have to figure out the cause of the damage. Water well casing leak diagnosis repair questions answers.
How to repair a water well casing. The casing is the tube that extends above the ground and leads to the pump and water below. Leaks into a well casing risk contaminating the well water with unsanitary ground water surface. Here s how a casing can be damaged the signs of a bad well casing and how it s repaired.
Repairing a water well casing should follow as soon as possible if you suspect a leak. This article series describes the diagnosis and repair of leaky water well casings. For example if the well casing is 2 inches in diameter overdrill the well with a 4 inch or larger auger. Large wells with casing diameters of 6 inches or greater may too big to overdrill depending on available equipment.
Steel casings are available in low carbon steel and series 200 304 and 316l stainless. Selection of casing and well screen. The cased section of any well houses the pump draws water from the source aquifer to the pump and seals the aquifer from contamination from adjacent zones. Well casing repair is commonly required following minor seismic activity or earthquakes or simply due to casing deterioration.
However casings and screens alone comprise the principal substance of a completed water well. An explanation of well efficiency appears in appendix 1. Fit the auger over the casing so that the drilling will break up the grout seal and sand pack surrounding the casing. Sources of casing repair tools kits methods and experts.
Leaks into a well casing risk contaminating the well water with unsanitary ground water surface runoff and salts fertilizer bacteria or any other contaminant likely to be flowing on the ground surface. What causes a well casing to crack. This activity can cause cracks or splits in the well casing and allow sand or other material into the well. This article describes the diagnosis and repair of leaky water well casings.
Frequently asked questions answers about how to fix a leaky or damaged water well casing.