I finally used my last 1/2 cap of Zone VI Wetting Agent tonight. Now I will have to decide to use Kodak's Photo Flo or Edwal's LFN. I wish I knew the chemical make up so I could make my own. Anyone who might know?
I use Photographer's Formulary wetting agent. It comes in a convenient plastic bottle with a dropper lid so it is easy to put a few drops in a small volume of water. Of course, you could buy a dropper bottle and use whatever wetting agent you like. I would not bother mixing my own because wetting agent is so cheap.