I noticed today we have a pipe behind our hot tub that is leaking. It's strange, in that it has two pipes going up about 3 feet off the ground, and is topped off by a box containing what appears to be a GFC reset switch?!? The switch only has the reset and test buttons, no outlet plugs. The brown pipe on the right side is either cracked or just not screwed in at the bottom of the coupling, as it is a clean break. There is only water in this pipe, and it is slowly coming out through the pipe.
I'm assuming this is somehow connected to the hot tub, which would explain the water loss we have been having. We've been losing about 3/4 inch overnight, which I attributed to a faulty check valve (replacement parts on the way). Any idea why I would have a water pipe connected to a GFC electrical switch? It looks like the previous owner had to repair it at least once before, as there is white stuff all over the bottom of the coupling.