This article presents the result of studies of occupational hazards in housing and communal services of Irkutsk region. It identifies harmful and dangerous factors that may affect the employees of enterprises “Vodokanal” of the cities of Irkutsk and Usolye-Sibirskoe. The assessment of working conditions for plumbers of emergency repair services is carried out in accordance with the special method of assessment of working conditions and includes tool measurement of the actual characteristics of the working environment. Particular attention is paid to studying the effects of the chemical factor – gas discharge, primarily hydrogen sulfide, on employees when working in manholes. The actual level of professional risk in emergency repair services during the performance of plumbers’ duties in sewer networks and facilities was determined. An innovative device for sewer flusher, aimed at reducing the effects of chemical and biological factors on humans during the operation of sewer networks, is presented.

This article presents a study of the possibilities of technological equipment in municipal engineering, as well as technical innovations to improve its efficiency. The authors review the research on a hydraulic mode and resistances in a working body of a technological equipment. The research results are determined by the introduction of new technical solutions aimed at increasing the efficiency in the work of the Vodokanal enterprises. Improvement of technological equipment is as a result of the improved working conditions in the process of the water disposal system operation.