| Brand Name : | Sun Pumps |
| Model Number : | SDS-T-128 |
| Depth Range : | 230 feet (70 metres) |
| Flow Range : | 0.6–2 GPM (2.3–7.6 L/min) |
| Max Load Current : | 4.2 Amps |
| Max Load Power : | 126 Watts |
| Discharge Size : | 1/2″ NPT or 15 mm BT |
| Minimum Well Diameter : | 4″ (100 mm) |
| DC Voltage Range : | 12 – 30 VDC |
The SDS-T-128 is a simple, DC-powered pump designed to run directly from solar panels or a small battery bank. It works best when paired with a Sun Pumps-compatible controller or PV disconnect.
Livestock Watering
Ideal for cattle troughs, watering points, and reservoirs on small farms where modest daily volumes (200–1,000 L/day) are sufficient.
Small-Scale Irrigation
Well-suited to kitchen gardens, nurseries, and drip-irrigated vegetable plots where precision and reliability matter more than high flow rate.
Remote Homesteads
A dependable water-supply option for off-grid homes, cabins, and hunting lodges with shallower wells.
Backup and Emergency Supply
Low-power operation allows the SDS-T-128 to be paired with a small solar panel and a single battery to provide emergency water during outages.
4-inch Well Casings
The compact form factor makes it a natural fit for existing 4-inch borehole casings that are too narrow for larger solar pumps.
