I am a little surprised that my installer is suggesting installing one of those E-lite pads on top of the concrete pad that's already there... He said it'll keep the condenser a little quieter and out of any water that may be forming on concrete.
The local inspector says there is no need for the plastic pad, but he sees nothing wrong with having it either.
So does the plastic pad add anything, or hurt anything? If I don't use the pad, are there other options for elevating the condenser slightly off the concrete? I just don't like the "pad on pad" look too much...