I inspected a garage under a home yesterday that contained the main electrical panel. When I opened it there was water standing in the bottom of the panel. Although the water was clear, a small amount of rust had accumulated on the surface, leaving the impression the water had been there for some time. The water was approximately a half-inch deep.
There are no water sources (pipes, etc) above the panel. The service line to the panel appears dry, and there are no stains present that would indicate where the water entered. Has anyone seen anything like this?
I doubt a dangereous prank was played because the home was vacant for some time and an old woman lived there when it was occupied.
The cable jacket appears to be intact, also the top of the electric meter base and service entry with proper loop. Inside the panel, where the cable enters and the wires separate, there is no evidence of moisture or staining.
The buyers were present for the inspection and were equally amazed by this accumulation of water.
I think there was too much water present for it to be condensation. The presure washing is a possibility. This garage was located under the home and built in the 1920s. it is also one of the cleanest garages I’ve ever seen, regardless of age.
But I would be especially careful not to wet the electrical panel with water.
I have often found the service entrance water tight SEU cable fitting on top of the meter will allow water to enter the meter and flow thru the meter and follow the cable into the panel. Its a wonder the meter don’t blow off the wall from the water.