I was told I asked my question in the wrong forum and that this was a better place to ask it. I have been reading these posts about building tanks out of syringes and poly tubing and such. I just have to ask. What is wrong with glass tubing? Borosilicate tubing would be strong. Breakage should not be an issue. So is there something that I am missing. I am looking at the new 18650 mod by Joye and a building a tank for the top just seems to be the right way to go, but I really do not like the idea of plastic or some derivative. Can someone help?