On Tue, 9 Jun 2009 09:56:43 -0700 (PDT), Mike wrote:

within 48 hours
the pressure is down below 20 psi. Obviously, there is a leak
somewhere in one of the connections, or in the tank itself.

Obviously.

I notice zero leakage on my 60 gal compressor so I'll come down on the
side of your situation being abnormal. Before getting onsite warranty
service, I'd first try to identify the source of the leak. Use some
leak test fluid, either commercial or a homemade solution of soapy
water in a spray bottle, and check each joint in the system, both on
and around the compressor tank and any piping runs.

Unless you had the system commercially installed, and the warranty is
from the installer, I doubt the compressor/tank warranty will cover
leaks in the piping.

Tom Veatch
Wichita, KS
USA