City of Geneva (SIG) · Fontaineo · Urbanat
Switzerland’s first sparkling public fountain, with its impact on screen
At a glance
Client: SIG for the City of Geneva, Fontaineo (maker), Urbanat (retailer)
Site: Public still and sparkling fountain, 90% filtered lake water
Instrumented: Still and sparkling outlets
Kit: iLink with Flow & Temperature sensors, QR code to a live impact page
Period: Since June 2022
The challenge
Fountains “just do their job”: nobody knew how much water they served, how many bottles they replaced, or what that meant for the climate.
What we installed
- iLink — Inline on the fountain
- Flow & Temperature × 2 — Still and sparkling outlets measured separately
- Impact page — QR code: bottles, CHF and CO2 avoided
Alarms that did the work
- Consumable end of life · Warning — consumable_end_of_life · filter, 10 days ahead
- CO2 bottle at 10% capacity · Warning — low_co2_pressure · below 45 bar, with days left predicted
What the data showed
Afternoon peaks
Wednesday and Friday mid-to-late afternoons are the busiest.
Sparkling wins
61% of users chose sparkling water.
Impact people can see
A QR code opens bottles avoided, CHF saved and CO2 avoided in real time.
Results
- Today on the impact screen: 51,959 L · 103,917 bottles · 8,604 kg CO2 — live values on 22 October 2026, since June 2022
- Water served: 15,147 L — First 2 months
- Users: 55,365 — First 2 months, about 900 a day
- Bottles avoided: 30,294 — 0.5 L bottle equivalent, first 2 months
“Already a great success with +17,000 litres distributed and +62,700 consumers — the ecological impact is very positive, with nearly 34,000 50 cl plastic bottles saved and 3,000 kg less CO2.”
Fabrice Cretin, General Director, Fontaineo
The takeaway
Measured litres become a story people share: bottles, francs and CO2 avoided, per fountain.
Droople case study, September 2022; press coverage in 20 minutes, Swissinfo and Radio Lac. Current totals from the fountain's live impact screen, 22 October 2026.