I've had to change the siphon on the upstairs toilet (it's close coupled so I had to remove the whole pan to replace it) - not nice when I know what me and my bro have put in it! At the same time I had to change the waste pipe and float valve on the downstairs toilet which was equally grim (the smell coming from the sewage hole was fucking horrible).

I asked a friend of mine how he does it for a living and he said that most of the time it's clean, but he has been asked to fix some fucking horrible stinking toilets as well!

Like everything, I guess you have to take the rough with the smooth!

Andy