Lasso Technik AG visited the municipality of Oltingen in the Upper Basel region in mid-March. The tranquil village of 500 souls owns one of the largest freshwater springs in Canton Baselland: the Gallisloch spring.
The normal flow rate of this source is on average 18 litres per second. At peak times up to 40l/s!
In the course of a revision of the pumping station, the leaking check flaps were replaced. Instead of the old check flaps, two Stop Silent® check valves were installed.
Rolf Gysin, fountain master from Oltingen, and Anton Graf, owner of Graf Pumpenservice & Metallbau, underline the advantages of the Stop Silent® valves: In addition to the silent closing of the rubber membrane, the easy-care maintenance of the system is highlighted.