A deep well pump is a long, slim multistage pump for narrow boreholes; an open well pump is a wider submersible for open wells, cisterns and tanks. Choose by casing size, water depth and water quality.
| Feature | Deep well pump (BORE) | Open well pump (WELL) |
|---|---|---|
| Shape | Long, slim, multistage | Wider, compact |
| Installed in | Borehole casing | Open well, cistern or tank |
| Alden range | BORE 0.5–3 hp with control box | WELL 1–3 hp |
| Best for | Depth, narrow casings | Large-diameter wells and tanks |
| Sand sensitivity | High — avoid sandy wells | Moderate — keep pump above sediment |
| Typical uses | Farms, estates, borehole villas | Wells, reservoirs, irrigation supply |
How to choose
- Measure the borehole or well diameter.
- Record static and pumping water level.
- Calculate total head and required flow.
- Check for sand and water quality.
- Pick the pump, riser pipe and cable length.
See Alden’s deep well and open well range.
Frequently asked questions
What is a deep well pump?
A slim submersible pump with several stages, designed to fit a borehole casing and lift water from depth.
What is an open well pump?
A submersible pump lowered into an open well, cistern or tank where there is room for the pump body.
Do deep well pumps need a control box?
Alden’s BORE deep well series is supplied with a control box that holds the starting components and protection.
Which is better for a farm?
If water is in a narrow borehole, a deep well pump. If it is an open well or tank, an open-well pump.