A borewell uses two distinct pipes. Getting both right keeps your pump safe and your water clean.
1. Casing pipe (lines the bore)
Casing pipe is installed in the drilled hole to stop the walls collapsing and to keep mud and debris out of the water. UPVC casing pipe is standard for most domestic and agricultural borewells — corrosion-proof and strong.
2. Column / riser pipe (carries water up)
Column pipe connects the submersible pump at the bottom to the surface and carries the water up. It must hold the full weight of the water column plus the pump, so strength and leak-proof joints matter.
- UPVC column pipe: the modern standard — light, rust-free, with rubber-ringed threaded joints. Easy to install and service.
- GI column pipe: heavier and prone to rust, but still used for very deep or high-load installs.
Choosing the right class
Column pipe is rated by the load it can carry. As a rule, deeper pumps and higher HP need a stronger class. Always match the pipe to your pump depth and HP — under-rating the pipe risks a joint failure and a dropped pump.
| Pump depth (approx) | Typical column pipe |
|---|---|
| Up to ~150 ft | Standard UPVC column pipe |
| ~150–300 ft | Medium / higher-class UPVC column |
| Deeper / heavy HP | Heavy-class UPVC or GI (confirm with us) |
We stock both casing and column pipe — see column & borewell pipes. For pump-side fittings, see HDPE & agriculture pipes. Tell us your pump depth and HP for the right class.