I spent a lovely afternoon yesterday with the plumbers from Dyno Rod watching them pull out kandoo wipes from my toilet system using tweezers! We had a drainage problem and ended up having to call them in. They plumber told me that his business had never been so good since kandoo wipes were invented. Apparantly they take 5 weeks to break down and only the newest plumbing systems can cope with the "abuse" (his term). He also warned me about the parazone toilet wipes (we use these sometimes) and quilted toilet paper. And he said he was waiting with bated breathe since he saw those new adds for those things to wipe your toilet with that you then release the brush thing and flush away.
We now have put a ban on kandoo wipes going down the loo and will put a bin (with lockable lid) in the bathroom for their disposal instead.
And I will say, my son does not have unsupervised toilet time so this is not a result of him thorwing too many wipes down the toilet - we are the ones who do the wiping.
Anyway, I hope this saves someone else the lovely afternoon I had yesterday.