i just got one of those yesterday, it was very easy to take apart and mod everything is threaded
senkat have you unthreaded the end of it at all there may be a small blob of purple glue keeping it shut.
The end of mine now has "teeth" marks in it from some vise-grips ! I could NOT get that sucker apart...Aaron_inc - are you a weightlifter or something ? LOL !!! It would not budge for me at all !!! :'(