OP
highspark
I know what to do here. Install a bonding clamp on gas pipe with a short piece of 1mm connected to it. Tell kitchen fitter it is an aerial for your wireless bonding arrangement back to MET. He will definately believe you as he does not understand electrical type stuff thingys. Then tell customer it is free. Everyone will love you.
The main issue I have is this other "spark" being involved! Ideally I'd like the Gas to be bonded back to the MET but if he wasn't involved I'd quite happily have just noted on cert! If the units weren't removed I'd have never have known anyway as Clamp is present on incoming gas pipe and would have tested via a long lead!
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