Alright, so this past May, I picked up a huge triple-perc tube from a local shop that I trusted extremely well, and even had a friend working there at the time hook me up with a discount on it. About two weeks after I got it, a drunk friend slammed it down on the ground at an angle, breaking the base. I found that a flaw in the base was likely the reason it broke so easily, something I was not too happy about. However, as it was a straight tube, only part of the base broke. It still hit perfectly. It ripped great.
When I was moving into school at the start of the semester, I had it in a heavy duty bag, fully closed. I went to move the bag, gently setting it on the tile floor of my room. Right as I put it down, I heard glass shattering, and opened it to reveal that either one or two of the branch percs had snapped right off on every level. The only time that the smoke went through water was from the downstem.
After doing a good amount of research into the Volcano glass brand, here is what I have found.
-They are not associated with the company that produces the Volcano vaporizer.
-Though the tubes are made in America, the "factory" is more of a sweatshop, using mostly illegal immigrants. Quality control is non-existent. The shop I got it from no longer carries the branch percs, as they have a long record of breaking.
-The tubes are cheap as shit from Volcano. I found out that the shop I got it from was marking up single-perc beaker bottoms that they paid just under $60 for up to $250. I completely understand the way a business works, and perhaps this is just my local shop, but that pissed me off to find out.
In conclusion, their glass is, for the most part, total shit. I've talked to plenty of people who've bought them and heard nothing good, and even more horror stories from the guys at the shop I got mine from.
Sorry for the long post, but they're an awful glass company, and their tubes should be avoided like the plague.