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- Title
Using Statistical Control Charts to Monitor Building Water Consumption: A Case Study on the Replacement of Toilets.
- Authors
Freitas, Lucas Lepinski Golin; Kalbusch, Andreza; Henning, Elisa; Walter, Olga Maria Formigoni Carvalho
- Abstract
This manuscript proposes the usage of Statistical Control Charts (SCC) to monitor water consumption in buildings. The charts were employed to study the impact of replacing toilets, providing visual and statistical feedback to measure the efficiency gain resulting from the replacement of outdated flushing equipment with newer devices. The case study was conducted in a building from a university in the South of Brazil. The building has four restrooms, from which a total of 41,554 readings were collected during a 15-month period using digital water meters. After the toilets were replaced, a reduction averaging 30.22% in water consumption was observed (from 7.51 L/flush/day to 5.24 L/flush/day). Additionally, the control charts were able to pinpoint dates when unique events happened during the water-consumption monitoring process.
- Subjects
BRAZIL; QUALITY control charts; TOILETS; WATER meters; RESTROOMS; PUBLIC toilets; WATER use; WATER consumption
- Publication
Water (20734441), 2021, Vol 13, Issue 18, p2474
- ISSN
2073-4441
- Publication type
Article
- DOI
10.3390/w13182474