>The only solution then is to pull a ground wire. By you?

Put an ungrounded socket, unless you are going to do major changes to the wiring. (I don't know where the line is drawn really.)

>Yes, ours is also recessed. The ones with ground pin;
>we have 2 models one half recessed and one full recessed.

Ok, I can see the difference. Why are there two types? Full recessed in wet areas? Does the ground pin protrude beyond the socket in the half recessed version?