FX Impact fill question

[GA_LeadHead]

Help a newbie out here.  Is it normal for the fill pressure to drop a little after filling directly from a compressor?
I fill my M3 to 250 bar and after a little while it drops to say, 240.  Is this a leak or due to temperature?

[dmeguy]

If it holds steady after reaching settle temperature, it is most likely due to the heat of compression.

[csitas]

Hey Lead, If you ever notice , when you pump up straight thru, by that I mean with no stopping, Your tube will get warm. Sometimes warmer than others. Your on the right thought that the heat is causing some drop in pressure afterward.
Also the faster you pump will raise more heat, also some moisture is possible.Slower is better.