Results of experimental investigation of the influence of values of the angle  at which jets join a pressure pipeline on the non-uniformity of water inflow along the collector-pipeline (CP) are presented. The inner diameter  of the CP is 11.28 mm, and the diameter  of the nozzles is 4.83 mm, . Five CPs in which all the nozzles had been installed at angles , the latter was given the values of: ;   ;   ;   ;   , where investiguated. A CP in which in the initial segment the nozzles had been installed at the angle , and in the middle and terminal segment ‑  has been also investigated. The greatest non-uniformity of the water inflow along the CP was obtained for CPs with ,  and the least one for CPs with diffrent values of the angle . The obtained results give us the reason to conclude that it is possible to adjust the non-uniformity of water inflow into a CP by means of the method of selection of different values of angle  at which the jets join the CP.

DOI: https://doi.org/10.3846/enviro.2017.073