Studies show that the disposal of wet wipes is about three times higher than the price of the wipes themselves. This is due to the high proportion of synthetic fibres, which make the wipes more tear-resistant and therefore extremely practical. The fact that these cloths are less degradable and therefore clog sewage pipes and pump stations in the form of lumps and plaits or end up on the sewage treatment plants and have to be fished out again is the other side of the coin.
Other articles that do not belong in the sewerage system are ear sticks, hygiene articles such as panty liners, tampons, bandages, oils and fats, condoms, food leftovers, paints and medicines to
to name but a few, which we are increasingly finding in the form of residues, both in the pipelines and at the pumping stations and sewage treatment plants. From 2010 to 2019, screenings, as we call this waste, increased from 264.81 tonnes/year to 408.71 tonnes/year. This is almost doubled within 9 years. These costs, as well as the additional expenses for maintenance and servicing of the plants, are reflected in the wallets.
Another phenomenon, which increases parallel to our disposable habits, is the increase of the inhabitants in the canal like rats, mice as well as the smell. Fats and food remains are deposited on the pipe walls and sections with little gradient and thus set the table for said animals. Gases are also formed, which on the one hand attack the pipes and manholes and reduce their life span, and on the other hand we smell the sewer more and more. We think that this is a question of culture. There are countries where it is quite natural to throw toilet paper in the garbage and not in the sewer. The sewer should only serve a business which should bring relief to all concerned, not costs. For the garbage there are own garbage recycling plants.