I see 2 big no-no's with that setup.
1) There is NO safety popoff valve on the tank.
2) There is no drain on the bottom of the tank to drain the water(can you say rust?)
You spent $270 on that and you could HAVE bought a decent compressor for that price.Compressor
I am not trying to discourage you, but why take the chance with safety and reliability? Those compressors that you bought are designed to fill the tanks attached to them. If you burn them up eventually, don't be suprised.