I don't own one of the cleaning machines and I certainly don't know what materials are put into the fluids that are sold to be used with them. I suspect that it is a "brew" of a few liquids. One comment I do have is the use of some sort of surfactant (meant to lower the surface tension of a liquid). This helps the cleaning since residue is less likely to "cling" to a finished/dry record. Those "brews" most likely contain some type of surfactant?
I don't think Windex is a typical surfactant and probably contains a small amount of ammonia and some other stuff. Do a search for generic surfactants. One that comes to mind is Photoflo made by Kodak. Meant to prevent drying spots on films processed in a manual manner. Probably found online or at just about any photographic supply dealer. Cheap and a 2 oz bottle would probably last a lifetime since one cap full will treat over 5 gallons of water (distilled).Good luck to you.
I don't think Windex is a typical surfactant and probably contains a small amount of ammonia and some other stuff. Do a search for generic surfactants. One that comes to mind is Photoflo made by Kodak. Meant to prevent drying spots on films processed in a manual manner. Probably found online or at just about any photographic supply dealer. Cheap and a 2 oz bottle would probably last a lifetime since one cap full will treat over 5 gallons of water (distilled).Good luck to you.