Upgraded wall sockets

[Marco]

In my previous house I had a similar mains layout and also had an earth arrangement like that described by Marco. I must admit, I am tempted to duplicate the earth in my current house (not instead of the house earth - as well as).

You should do it, Mark, as it works! I know of a top-notch sparky, who would come and do the job very cheaply for you, as he's a friend of mine

Marco.