移民工人在罗马的极端郊区建造了自己的住房。他们的准城市没有下水道系统。ACEA被要求为该地区建立一个下水道系统。ACEA还负责为Bracciano湖地区建立污水管网。共建立了81个污水泵装置。使用了水下电动泵。本文讨论了这一问题、电动水下泵的选择、水下泵可靠性和维护操作成本的考虑，以及施工成本的评估。

Migrant workers built their own housing on the extreme outskirts of Rome. Their quasi-cities had no sewer system. ACEA was required to create a sewer system for this area. The ACEA was also charged with creating a sewage network for the Lake of Bracciano area. A total of 81 sewer pumping installations were created. Underwater electric pumps were used. This paper discusses the problem, the selection of electric underwater pumps, considerations on the reliability of underwater pumps and the cost of maintenance operations, and evaluation of construction costs.