Modern pumping-station

Drawings of the modern pumping-station based on the ancient water source building (Hoffmann2002).
Upper drawing: Modern concrete wall and extension of the spring cementation, under it an ancient foundation on five still visible blocks.[Felsen=rocks; Graben=graves; Auszen=open-air]
Lower drawing: Highest and lowest ancient water level, under it the highest and lowest modern water level [Durchbruch=breach]