okay bro,
the basics behind string boiling is to extend string life on your strings. That's because as poor singaporeans who don't earn alot ... e.g. poor NS privates like me who earn only a meagre sum of money from the SAF ... that's the only way to extend string life and prolong the next "okay-its-time-to-get-new-strings" day ...
bass strings ain't cheap ... not when you're playing a 5-stringer .. worse ... 6-strings or more ...
when you play your strings for a period of time it loses its ability to vibrate due to dirt/dead skin/dried sweat stuck inbetween the grooves of the string .. what boliing the string does is to get rid most of the dirt of the strings so that the life of the string will come back to it ...
how to boil, you can refer back to the older posts ... it'll help ..
there are basically two methods of boiling ... (if there's a third or more .. just post them up here okay?) ...
1. Boiling strings in water with some detergent/vinegar ...
2. SOAKING the strings in methylated spirit ... (DON'T BOIL METHYLATED SPIRIT!! IT'S FLAMABLE!!) ...
hope that helps ...