| József Gruber Reservoir, Gellért Hill Reservoir | |
|---|---|
Gruber József medence, Gruber József víztároló, Gellérthegyi víztároló | |
 The insides of one of the cisterns | |
  József Gruber Reservoir | |
| General information | |
| Type | cistern |
| Address | 1016 Budapest, Víztározó köz |
| Town or city | Budapest |
| Country | Hungary |
| Coordinates | 47°29′23″N 19°02′21″E / 47.489760°N 19.039046°E |
| Named for | engineer Dr. József Gruber |
| Groundbreaking | 1974 |
| Completed | 1980 |
| Cost | 600 million forints |
| Owner | Budapest Waterworks |
| Technical details | |
| Size | 80,000 cubic metres (104,600 cu yd; 80,000,000 L; 21,133,800 US gal) |
| Design and construction | |
| Architecture firm | Mélyépítési Tervező Vállalat (MÉLYÉPTERV) |
| Structural engineer | Dr. József Janzó |
| Main contractor | Fővárosi Mélyépítési Tervező Vállalat (FŐMTERV) Mélyépítő Vállalat (MV) |
| Website | |
| vizmuvek | |
The József Gruber Reservoir (IPA: [ˈjoːʒɛf ˈgrubɛr]; in Hungarian: Gruber József medence, "József Gruber pool", Gruber József víztároló, "József Gruber reservoir"), also known as Gellért Hill Reservoir (Gellérthegyi víztároló, "Gellért Hill reservoir") is a pair of large water cisterns inside Gellért Hill, in Budapest, the capital of Hungary. Operated by Budapest Waterworks, the reservoir plays an important role in the water supply of South Buda and the city center. Located under the area known as Garden of Philosophers, it is considered the largest such structure in the country.