Re: Ghosting... What actually causes it?
If you soak it in bleach, don't put AJAX on it - there's no need to chemical yourself out. Just rinse it super-thoroughly and maybe throw it in the dishwasher with no soap. Make sure you give your hookah a good going over no less than once every two weeks if you smoke regularly. Some people recommend washing every time you smoke, but I find that to be an unnecessary hassle. I try to wash mine at least once a week, but I smoke every day.