"Exoir" wrote in message
...
I had my 2.5lb tank filled at a paint gun store.
Its at 1250psi Is this full?
At what psi will I need to refill it?

The pressure in the tank won't change much until its almost empty - you need
to measure it by weight. If you look at the tank it may have the empty
weight stamped on it somewhere.

Unless you have some kind of Ph Meter controlling the tank be careful when
you think its getting low. When the last of the liquid CO2 turns to gas the
tank can "dump" & inject massive amounts of CO2 into your tank which will
not be good for its inhabitants.

I.