Water-pump selection should be based on measured site requirements rather than horsepower alone. Ask an installer to calculate total dynamic head, suction depth, target flow, pipe losses, and electrical conditions.
Confirm whether the pump will be indoors or outdoors, whether the water source is clean, and whether a non-return valve, pressure tank, or automatic controller is required. Correct priming and protection from dry running are essential.
Keep the invoice, model number, and installation details for future service.