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.
I’m pretty sure we’re allowed mixer taps, I mean there’s one in my kitchen after all. But you’re right, they are much less common. I wonder why that is? I’m not sure what the pissing grate is, I feel like I’ve seen one though.