These were some pic's I took yesterday. This box was plugged into a non-gfci protected 240V 50A receptacle outlet. When I picked this box up it weighed quite a lot more than I figured it should, and once I shook it I figured out why. It was about halfway full of dirt! I held it upside down and watch sand fall out of the receptacle contacts like it coming out of an hour glass!
That close-up of a receptacle you showed- was it possible to put a grounded plug in the outlet at the top? The caulk looks like it is blocking the ground pin hole. The rectangular knockouts look like they were designed for GFCIs but someone used Decoras instead!
[This message has been edited by sparked (edited 09-27-2003).]