u/Pepsi_Cola64

I found a 3 gallon Campbell Hausfeld air compressor in my garage. I don’t know how old it is, but I went to use it and realized I have no idea how long it should take to build pressure. It seems slow to me, but I don’t know what the normal rate is? I’d say it takes a minute to get to 20PSI, then even slower going from there. This is with the regulator blocking all air flow to the hose.

The model number is FP2090.