A backwater automat with noise and vibration reduction

The constant humming


Water streams can cause the sewer system to vibrate. Drainage pipes absorb the movements and propagate them through vertical pipes to inhabited areas. At first, these noises may be barely perceptible. But because of their uninterrupted constancy, they strain the nerves of the inhabitants - especially during night-time hours.
The rubber membrane of Stop Silent SL13® (formerly Light) absorbs these movements and effectively interrupts the propagation. In this way, resonances and pipe noises are muffled. The resulting calmness has an immediate effect on the quality of sleep of the person suffering from it.


In August 2019, a customer of Lasso Technik also encountered this kind of problem, he testifies:
"For years, we have suffered at night from vibrations and noise from sewers and waterways 70 meters away. By chance, we heard about your check valve. Since the installation of the Stop Silent SL13® (formerly Light), we sleep much better. We highly recommend this product".




When the sewer system is out of step with the times


Sewer systems were generally designed for the climatic conditions and infrastructure of several decades ago. Over time, more and more asphalt surfaces are being laid over the ground. Today, precipitation has other characteristics, partly due to global warming.


The consequences are overloaded sewer lines, backflows and flooded basements. Depending on how the property is arranged, guest rooms, craft or hobby rooms, etc., are located in the basement. The damage caused by this situation is not only financially but also emotionally very costly.

The drying process can take weeks. Dehumidification machines are disturbing by their noise. Stop Silent SL13® (formerly Light) backflow control valves never fail and reliably prevent such scenarios.