No idea really, the vent that was erupting currently has a slight draft but it's on a joining wall in a terrace so fuck knows what's going on there. The nearest drain in the road looks as if it overflowed (twigs/leaves everywhere) but our drains weren't gushing, just not going down.
Damn! That looks rough! Sorry about that. So what happened did the drains just fail to run into the canals or what?