I've done liver cleanse 5 times and always directions set by Hulda Clark
(sorry don't know any Julie Chang).
Don't know where the apple juice came from, I always used Grapefruit Juice as per H. Clark.
Again, always used Epsom Salts , not Seasalt . I am not saying it won't work, but no experience with that.
If you are on non-fat diet day prior to cleanse you will greatly help to build up the bile pressure
and likely push more stones if you have them.
For your info, first time I did it I followed H. Clark to a minute. Then next two I didn't care about
timing much and couldn't sleep well and no many stones. Last two I watch clock to a minute
and no problems. Timing is really important. Good luck! ckp