I seems like the bath in my flat isn't connected to the supplimentary bonding. The only plumbing connection to the bath is the (plastic) waste pipe - the taps are wall mounted above it. The bath is steel enamel. Is this ok? The flat was recently inspection and tested by a NICEIC inspector who looked at the bathroom bonding and didn't comment, so I'm guessing it's alright in this instance. Any thoughts? Thanks!