| 摘要 |
The invention belongs to the sphere of cleaning devices. The unit for cleaning wastewater systems consists of two elastic balloons. The closed pipe with openings is mounted in one of them. The thimble with an opening is mounted inside the other balloon. These elastic balloons are connected by flexible hoses and a connective element in shape of the letter "Y", which is connected to the hose, which has a widened thimble. |
