be very careful with, as im sure you will be. just try using hot water, rubbing alcohol, and epsom salt. also, after your done using it after each session try to wash it out right away.. it kind of makes it easier in the long run when you decide to wash it fully
I use purple power in my glass/acrylic bong all the time clean goods, remove smell and seem like new after !!! About 10$CDN a 16oz bottle and you can reuse it !!!