The DAB S4-3/19 is a submersible borehole pump for deep well water extraction. Install it vertically, fully submerged, with the discharge outlet (1.25" GAS threading) pointing upward. Lower it using a non-corrosive rope attached to lifting points, ensuring the inlet at the bottom is unobstructed. Position it 1–2 meters above the well bottom, matching the 29.42–42m head and 1.8–4.2 m3/h flow rate to your system. Use a 1.1 kW, likely 230V, power supply with a waterproof cable and control box. Ensure water temperature stays below 35°C and includes a functioning check valve