Yes, correct. Yes, mentioning "Olaf" will be fine. There are just a few Olafs within Geberit and just one in the Corp Com Team
The guy from Gerberit seems to have been very helpful in this case so hats off to him for that. However, I find it difficult to believe that the boffins at Gerberit needed photos to recognise the problem and weren't sure what causes it. I've been replacing Gerberit flush valve seals with exactly this issue for years and now keep a few spares on the van. Together with the brittle plastic clips and the useless plastic screw in the button which locks the lid onto the cistern, these days I generally just replace the whole lot with a fluidmaster. That way if anything goes wrong it takes 5 mins and £15 to stick in a new one
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