Ahh. Well there you go! The expert amateur shoots his other foot off.
As as much as I like this sort of sport, it gets rather tiresome after a while.
Education ....... The GI(US)P also known in the trade by Bona Fide Gas Engineers (which you aren't) as L56, is the Gas Installation (Unsafe Situations) Procedures.
That is what Gas Engineers are guided by when we come to a boat that has been 'cobbled together' by a well meaning expert amateur when we Disconnect the supply, issue a warning notice, if necessary report the issue to the HSE and then walk away, content in the knowledge that we have strengthened the gene pool by prolonging its population by one (at least) amateur expert to help all us qualified guys out!
Done with you now, only to offer one last bit of advice (which you are bound to ignore).......
Never, ever, enter into a battle of wits with someone when you are so obviously half armed!
you will get that in a bit
TTFN!