Good for you. coffee enema is heaven if done properly.
Adding salt to coffee enema, Hmmmmm. It seems(to me anyway) that adding salt to the coffee enema, would be defeating it's purpose, which is to be absorbed into the bloodstream. Coffee stimulates the liver to make more bile. Bile, from the gallbladder draws out toxins.
So a coffee enema with salt would be more of a cleansing enema not a detoxifing enema.
I know people add Epsom Salt to the coffee enema. I tried that a couple of times with Epsom salt. No, thank you. For me I stick with just the coffee.