Tranås VA-verken – Sweden

 “With the SSF-800 on site, we can now clean our sand filters when needed — without relying on external contractors.”
— Operations Lead, Tranås VA-verken

Tranås VA-verken is the municipal water utility responsible for providing clean drinking water and wastewater services in Tranås, a town in southern Sweden. The utility faces challenges related to seasonal algae growth, sedimentation in open reservoirs, and aging infrastructure. By implementing robotic cleaning technology, Tranås VA-verken avoids costly shutdowns and ensures consistent water quality year-round. These efforts contribute to long-term sustainability and help the municipality comply with national water safety directives without compromising service continuity or budget constraints.

The Challenge

 Fast algae growth on the surface of slow sand filters reduced their effectiveness, requiring regular skimming. External services caused delays and logistical costs.

The Weda Solution


 Weda supplied the SSF-800 — a purpose-built skimming robot for sand filter beds. Tranås can now clean the filters instantly when performance drops, minimizing downtime.

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SSF-800 deployed on-site permanently
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Immediate cleaning on demand
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Maintained high filtration efficiency
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Eliminated third-party contractor costs
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Improved long-term asset performance

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