The DRS covers works related to investigation and repair of common drains, as well as adjoining branch pipes not located within individual flats, in order to improve the overall function of drainage systems.

The DRS covers works related to investigation and repair of common drains, as well as adjoining branch pipes not located within individual flats, in order to improve the overall function of drainage systems.

The DRS covers works related to investigation and repair of common drains, as well as adjoining branch pipes not located within individual flats, in order to improve the overall function of drainage systems.