On Sunday, 2 May 2021 at 11:40:15 UTC+1, Davey wrote:

Yes, as I understand it, wet-wipes are described as 'biodegradeable'
when they are not, at least within the time frame that matters. When we
lived in the US, in a rented property, there were historical tree root
problems, which meant that we saw the Roto-Rooter man about once per
year. He talked about one client who kept on getting blockages due to
Q-tips put down the loo, and every time he explained that this was not
where to put them, he just got a shrug of the shoulders in response. So
they had to keep paying for him to return.

I keep wondering whether ordinary paper hankies are safe to flush? They always seem to be no more substantial than toilet tissue. (Not thinking about the heavy ones with multiple layers and embossed patterns. Just ordinary cheap ones.) If I happen to blow my nose in the bathroom, it is tempting just to drop it in the pan.