I thought a toilet always needed a vent pipe?
I've just come across a ground floor toilet in a residential property where the waste pipe disappears into the ground and there's no soil stack around, except that of the neighbour on the other side of the party wall!
I've just come across a ground floor toilet in a residential property where the waste pipe disappears into the ground and there's no soil stack around, except that of the neighbour on the other side of the party wall!