How noisy is the WWTP?

The noise level of the blower is guaranteed by the manufacturer at 38 dB. This value meets all sanitary standards for installation next to residential buildings. However, our installation under the WWTP cover reduces the overall noise level to barely audible. With the lid closed, the sound of water splashing is more noticeable than the operation of the WWTP itself. All Topas WWTPs meet noise limits. The basic limits for outdoor noise in residential areas are 50 dB during the day (6 am-10 pm) and 40 dB at night (10 pm-6 am).