25 metres without chlorine – the Tannerhof

The Tannerhof in Bayrischzell has been a natural hotel since 1905 – and water has always been part of it, as the old waterwheel along the path proves. In 2025 came a new chapter: a 25 × 5 metre stainless steel pool in front of the “Badeharpfe”, the award-winning long timber building by Florian Nagler Architekten. Our part in it: the Living Pool technology from Biotop including installation – with foundation, insulation, drainage, retaining stones and steps around the pool. The stainless steel pool itself was built by Berndorf Bäderbau, the building is Nagler's work, and the rest of the outdoor area was not our work – each to their own craft.

Why this is worth mentioning: running a hotel pool of this size without a gram of chlorine is the real feat of engineering. The biological treatment is designed for thirty bathers a day, the volume is around 175 m³ at a depth of only 1.35 metres – and in winter the swimming pool becomes an ice bath. Our work on site: seventeen days on the building site in June and July 2025, while the hotel remained fully open.

Since 2026 the pool has had a roller cover from Rollo Solar, which we installed, and the system is part of our ongoing service – anyone who promises the water quality of a natural pool has to deliver it afresh every season. More about our hotel projects: Hotels & hospitality.

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Photos: Benjamin Klopp / frames for good