Yeah, that's my plumbing. I don't know what you guys don't understand. I have the normal return on my pool, but I also added a solar heater and a fountain. That is all just various valves so I can shut and open in any combination of return, heater, and fountain that I want.
Actually, it does look very much like the box I opened to inspect the wiring in the garage to tap into for the GFI. I found the main line coming in from the main box in the house to a box in the garage, opened it, and it was a rat's nest of wires. I quickly closed it and found another source.