Apples and oranges. Totally different things in chemistry and the way they work. SWF works in a gentle manner because the mix is the same specific gravity as blood and the body doesn't absorb it. Epsom is a fairly harsh chemical reaction that the system reacts to it like a poison drawing water to the intestines to flush it out. It is very dehydrating and should never be done when fasting
Have you ever actually tasted Epsom Salts??? I ask cause I find it hard to believe that anyone would call a little salty water "disgusting" compared to the taste of Epsom salts.