These pair of conceited and arrogant clowns go on to say I should read the forum rules!
I think that you may have been referring to me above which I find abusive.
You may also find that it would have been correct to say "This" rather than "These".
Since you seem unable/unwilling to read the forum rules for yourself this is what is said about advice on gas issues:-
This site does not support DIY gas and posts giving advice on gas work, or encouraging or suggesting it, may be deleted. However, posts are not routinely monitored, so no work should be done as a result of seeing anything on the site.
ANYONE PERSISTENTLY GIVING ADVICE REGARDING WORK ON THE LISTED COMPONENTS OR REPEATING IT ONCE DELETED, CAN EXPECT TO HAVE THEIR MEMBERSHIP OF THE SITE REVOKED.
Anyone seeing such a post should raise an"Alert" so it can be dealt with.
Knowledgeable members should refer to this section, avoiding any confrontational or abusive language at all times.