"john smith" wrote in message
...
In article ,
"RST Engineering" wrote:

I would ten times over risk gas theft over water condensation overnight
in
half-full or nearly empty tanks.

But, if you fill it up, and they siphon it out, don't you still have the
same problem?

Yes, but the siphoning is an unlikely event. If condensation were a serious
concern, you'd prefer to take a small chance of theft plus condensation
rather than defending against theft at the cost of a much greater chance of
condensation.

--Gary