A 4-inch borewell in Tamil Nadu typically refers to a borewell with a diameter of 4 inches, commonly used for domestic water needs, with specifications including a casing pipe of similar size, suitable for drilling in various rock formations depending on the location, and a submersible pump designed for a 4-inch borewell
- Diameter: 4 inches (around 100mm)
- Typical usage: Domestic water supply for a single household
- Casing pipe: PVC pipe with a diameter matching the borewell size
- Drilling method: Varies based on rock type, could include rotary drilling, percussion drilling, or a combination
- Pump type: Submersible pump designed for 4-inch borewells