I have a Carvin Belair I bought recently. It has a rattle that I traced to the reverb tank, a long 3 spring Accutronics tank. It is definitely the tank, I removed it and laid on the floor and the amp was loud and rattle free. I put it back in the amp, and hello rattle. Any ideas on the best way to reduce or eliminate the rattling tank? Is it possibly a defective tank? I don't see any obvious loose or rattling parts, other than the springs themselves or perhaps the little springs that the spring unit is suspended from. Would putting it in a bag help. like there usually is on older Fender amps? Maybe wrapping it in foam or something? It already has rubber grommets in the mounting holes that suspend the tank a bit from the bottom of the amp. Any miracle cures out there would be greatly appreciated.