[77newell]

Archie: one inference of your statement I would like to confirm is the the 20-30 psi drop is happening repetitively with periods of normal pressure in between. If that is the case it is highly likely it is an electrical issue with the pressure reporting gauge system. Actually, come to think of it, if you had this drop instantaneously there is no way a leak large enough to make that happen would stop at 20-30 psi. In addition your compressor would be running constantly and when you stop outside you would hear air leaking from somewhere.