deepdan

"This act of worship is called `deepdan', and the entire lake is illuminated" by candles.
So that could be why I can't get deepdan username on some systems like yahoo.

deepdan started as a name for me in forums back in the mid 80's to early 90's.
At the time I was considered a deep (air) diver.
Now the trimix community dives much deeper but I keep deepdan out of amusement.
I still prefer that 27-55m range though.
Which is where some of the best diving locally is.

viplus

Why do scuba tanks fail viplus?
Passed in 2001 failed in 2007
Chances are the tanks sat around and probably had no more than 10-20 fills.

Then again, what do I care? my one failed and was replaced (for a fee) ages ago with one that doesn't need viplus.