Definitely try breaking down the kegs, but I'm assuming your tower and taps are new while your kegs are reconditioned? If it's a metallic taste, that's exactly what I got when I switched my old one tap tower with a new two-tapper with perlicks.
To fix that, use the wrench that comes with everything (should look like one of these: http://www.beveragetime.com/product-categories/tools/
) to disassemble the taps and then soak them in some PBW overnight: http://www.northernbrewer.com/brewing/powdered-brewery-wash.html
That was the only thing that got rid of the taste for me. Just running cleaning products through the lines wasn't good enough.
Any chance you got your setup from kegcowboy?