The debit of the well is a passport characteristic of the well, which indicates how much it can give water over a certain time. If the performance of the pump unit is greater than the debit of the well, then the pump may fail. The maximum pressure shows what height the pump can pump water, and m. If pumping equipment is selected for an artesian well, then the pressure must be compared with the depth of the well. When choosing a pump by pressure, it is necessary to take into account the horizontal section of the water supply or heating pipes and their resistance. If the pumps are designed for pumping waste or sewage water (fecal or drainage pump), then the degree of fluid contamination and the value of particles and impurities that are present in the pumped liquid are taken into account.
