Since 2002, the KLS Filter has been deployed in extremely varied contexts: Swiss alpine pastures, Alpine Club huts, Jura farms, African schools, Kyrgyz villages. Each installation proves that well-designed slow filtration works everywhere and for the long term.
Over 25 installations across 3 continents. Click a marker for details — or "View card" to see the photo and full description.
Ferme du Maran, Jura
First KLS Filter installation
~5,700 L/dayFirst KLS Filter installation. Water supply for an agricultural farm using gravel filtration and two slow sand stages with bauxite finishing. Still in service after over 20 years.
Switzerland · 2002 · ~5,700 L/day · Agricultural farm — spring water treated with 2 slow sand stages and bauxite. Still in service after over 20 years.
Vevey, SIGE
Pilot trials for mountain springs
~8,000 L/dayPilot trials for mountain spring treatment for SIGE. Horizontal cylinder 2.4 m diameter.
Switzerland · 2011 · ~8,000 L/day · Pilot trials for municipal network — horizontal cylinder 2.4 m diameter.
Riggisalp, Schwarzsee FR
Water supply for Alpgenossenschaft Schmitten
~5,000 L/dayWater supply for Alpgenossenschaft Schmitten. Vertical cylinder 2.4 m diameter.
Switzerland · 2012 · ~5,000 L/day · Alpine pasture — vertical cylinder 2.4 m diameter for cheese-making cooperative.
Alpage Grosse-Orgevalette, Haut-Intyamon FR
Cheese-making alpine pasture — Cantonal Prize 2012
~1,300 L/dayWater supply for a cheese-making alpine pasture. Fribourg Canton Agricultural Innovation Prize 2012.
Switzerland · 2012 · ~1,300 L/day · Cheese-making alpine pasture — winner Fribourg Canton Agricultural Innovation Prize 2012.
Kaltbrunn, SG
Alpine pasture and restaurant
~4,300 L/dayWater supply for an alpine pasture and restaurant.
Switzerland · 2012 · ~4,300 L/day · Alpine pasture and restaurant — combined supply.
WV Geuensee, LU
Iron and manganese treatment — collective network
~43,000 L/dayIron and manganese treatment for a collective network. Horizontal filter 2.4 m diameter.
Switzerland · 2013 · ~43,000 L/day · Collective network — iron and manganese treatment, horizontal filter 2.4 m.
Les Fonges, Franches-Montagnes JU
Franches-Montagnes farm
~5,700 L/dayWater supply for a farm in the Franches-Montagnes.
Switzerland · 2013 · ~5,700 L/day · Agricultural farm in the Franches-Montagnes JU.
Plateau de la Monse, Charmey FR
Network of cheese-making alpine chalets
~29,000 L/dayWater supply for a network of alpine chalets for cheese production. Horizontal cylinder 2.4 m × 6 m.
Switzerland · 2013 · ~29,000 L/day · Network of cheese-making alpine chalets — horizontal cylinder 2.4 m × 6 m.
Zugeralpli, ZG
Alpine pasture and restaurant
~4,300 L/dayWater supply for an alpine pasture and restaurant.
Switzerland · 2014 · ~4,300 L/day · Alpine pasture and restaurant ZG.
Soro, Burkina Faso
School for 400 pupils — RWB Group donation
~5,700 L/dayDrinking water supply for a school of 400 pupils. Donation from the RWB Group on its 75th anniversary.
Africa · 2014 · ~5,700 L/day · School for 400 pupils in Burkina Faso — humanitarian donation from RWB Group.
Combe de Mettembert, Bourgeoisie Delémont JU
Network of farms
~28,000 L/dayWater supply for a network of farms.
Switzerland · 2015 · ~28,000 L/day · Network of farms JU — collective supply.
La Léchaire, Villorsonnens FR
Hamlet water supply
~40,000 L/dayHamlet water supply using a horizontal cylinder 12 m long and 2.4 m diameter.
Switzerland · 2015 · ~40,000 L/day · Hamlet FR — horizontal cylinder 12 m × 2.4 m.
Bourgeoisie de Port-Valais, VS
Chalavornaire network
~720 L/dayWater supply for the Chalavornaire network. Vertical mini-filter 900 mm diameter.
Switzerland · 2015 · ~720 L/day · Chalavornaire network VS — vertical mini-filter 900 mm.
École de l'espoir, Guinée
Mini-filter for school in Guinea
~720 L/dayVertical mini-filter for a school water supply in Guinea.
Africa · 2017 · ~720 L/day · Vertical mini-filter for school in Guinea.
WV Fittligen, SG
Hamlet water supply
~57,000 L/dayWater supply for a hamlet. Rectangular filter.
Switzerland · 2017 · ~57,000 L/day · Hamlet SG — large-capacity rectangular filter.
Schwägalp, SG
Alpine pasture — rectangular boxes
~700 L/dayWater supply for an alpine pasture. Rectangular boxes.
Switzerland · 2018 · ~700 L/day · Alpine pasture SG — modular rectangular boxes.
Ferme Malmont, Couvet NE
Farm and dwelling
~3,000 L/dayWater supply for a farm and dwelling.
Switzerland · 2018 · ~3,000 L/day · Farm and dwelling NE — combined supply.
Ferme Flück, Vermes JU
Agricultural farm
~5,700 L/dayWater supply for a farm.
Switzerland · 2019 · ~5,700 L/day · Agricultural farm JU.
Filtre KLS Burtigny, VD
Maisons rouges hamlet
~5,000 L/dayWater supply for the Maisons rouges hamlet. Horizontal cylinder 3.0 m diameter.
Switzerland · 2021 · ~5,000 L/day · Hamlet Maisons rouges VD — horizontal cylinder 3.0 m.
Melchsee-Frutt, OW
Tannalp water supply
~25,000 L/dayWater supply for Tannalp using a horizontal cylinder 3 m diameter and 11 m long.
Switzerland · 2022 · ~25,000 L/day · Tannalp OW — horizontal cylinder 3 m × 11 m.
Cabane du berger, Mauvoisin VS
Micro-filter for shepherd's hut
~100 L/dayWater supply for a shepherd's hut. KLS micro-filter.
Switzerland · 2023 · ~100 L/day · Shepherd's hut VS — KLS micro-filter.
Cabane des Violettes, Crans-Montana VS
SAC hut — karst spring
~4,000 L/dayKarst spring treatment for a SAC hut. Vertical cylinder 3 m diameter.
Switzerland · 2023 · ~4,000 L/day · SAC hut — karst spring, vertical cylinder 3 m.
Waldgasthaus Lehmen, AI
Mountain inn
~4,000 L/dayWater supply for a mountain inn. Vertical cylinder 3 m diameter.
Switzerland · 2023 · ~4,000 L/day · Mountain inn AI — vertical cylinder 3 m.
Yrdyk, Kyrgyzstan
Village water supply — largest KLS installation
~144,000 L/dayVillage water supply using concrete basins. Largest KLS Filter installation to date.
International · 2025 · ~144,000 L/day · Village Yrdyk, Kyrgyzstan — concrete basins, largest KLS installation to date.
Barme, Champéry VS
Remote hamlet and restaurant
~10,000 L/dayWater supply for a remote hamlet and restaurant. Horizontal cylinder 3 m × 5 m.
Switzerland · 2025 · ~10,000 L/day · Hamlet and restaurant VS — horizontal cylinder 3 m × 5 m.
Nepal
Hotel in rural area
~700 L/dayHotel in rural area — modular filter.
International · Ongoing · ~700 L/day · Hotel in rural area, Nepal — modular filter.
Cabane de Moiry, Val d'Anniviers VS
SAC hut — sizing in progress
To be definedSAC hut, sizing in progress.
Switzerland · Ongoing · Capacity to be defined · SAC hut Val d'Anniviers VS — sizing in progress.
Articles, dossiers et publications scientifiques consacrés au KLS Filter, dans la presse romande et internationale.
Reconnaissance officielle des qualités techniques et environnementales du KLS Filter.