I have a Electrolux rm212 refrigerator that looks as though it has leaked the cooling gas/liquid from the bottom of the pipe work at the back. There is a yellow stain around the bottom of the pipe work and where it has been sitting. The front and inside is in vary good condition but the steel pipes etc at the back has a fair amount of rust. It is 12v/240v/gas all working well but it dose not get cold. Is it worth fixing? I can repair the leak, soft solder, weld, etc if I can find the spot, what would be best? What sort of pressure dose it have to take? Main problem where can I get it refilled around Norfolk/suffolk? I belive it is a mix of hydrogen gas ammonia and water.