the above-mentioned Article requires the installation no great technical effort and is also untalented hobbyists no problem. I have the defective old Geberit filling valve with a small pipe wrench disconnected from water supply and connected the new fill valve at the same place.
The holder of the old fill valve on the inside wall at the kettle is no longer needed and must not be removed because of insufficient space required for installing the new fill valve. The sturdy aluminum tube has been bent to fit and carries the Universal filling valve without any support. Now even connect it as described above and then rinse enjoy.
Conclusion: If the item is to be mentioned that has dropped sharply after the filling valve connection of the water noise level. All in all I would recommend this product well and am since the use of even with the two water consumption possibilities (small and large business) very satisfied.