I’ve got a clogged sink, and have been reading the labels on a bunch of different products lately. I’d always assumed that they were a strong acid of sorts, which would dissolve whatever sort of material was built up in the pipes. But I’ve noticed that a lot of these products specify that they’re non-corrosive, so I’m not sure what other sort of mechanism may be at play here.
Lye is the bomb. I keep loads of it around for making soap and other uses. You were all good, it won’t dissolve the plumbing.
I used to make a lot of soap! But hobby storage creep, I don’t know, I had to get rid of everything.