More than 1.1 million kilometers of water and wastewater networks in Germany must be continuously renewed—designed for service lives of sometimes over 100 years, while declining water consumption with unchanged operating costs puts additional strain on financing. Added to this are skills shortages and new KRITIS requirements for IT security. Water utilities, pumping stations, and wastewater treatment plants therefore need maintenance that makes priorities clearly visible. Our blueprints provide proven, practical concepts to reliably manage maintenance, inspection obligations, and KRITIS documentation with GS-Service—even with limited staffing.