EN
Basic indices of reliability of pumping aggregates used in reclamation intermediate pumping stations were determined on the basis of the research concerned with their use. They are: intensity of damage stream λ(i) and intensity of renewal μ(i). A model of the work of the intermediate pumping station has been worked out. This model took into account reliability criteria and variability of the inflow of water into a container. An alegorithm of the selection of a set of pumps which meets conditions of the intermediate pumping station work, has been presented.