I hope this topic is not too delicate for this forum...
There are 3 toilets in my 1997 built house, all with the same design. It says Ideal Standard 825 on the lid of the cistern, so maybe that is the model number.
The problem is that every one of these units suffers from skid marks in use, so they require constant attention. Now, I'm aware that other designs do not behave in this manner, so it probably has to be something to do with the overall design, the slope, the water level.
I can no alternative to replacing these pans for something more suitable and friendly, but I am left wondering - do WC pan designers not do practical tests on their products before releasing them to an unsuspecting public?
I know the mind boggles, but this is a serious fault!
David J