necessary for mounting on washbasin gefließtem underground

our plumber had the soundproofing 15 years ago not used when screwing the basin it cracked at the time, a small crack was.
Meanwhile, the plan had worked through the whole basin at dismantling it disintegrated.
Klemptner and sink were exchanged and attached the new on the tiles with this Sound insulation, no more wobbling for tight fit.
Perfeckter compensate the small bumps of tiles and the sink itself. The supernatant was removed with the knife.

Should> hot ...