Deep cleaning a still

[GeekSpirits]

I am getting ready to disassemble and deep clean my still.  One question I have is what would be the best way to clean my condenser.  It doesn't disassemble so I can only fill will a liquid and let it sit for a while before rinsing so what is good to add to water to clean the surface without scrubbing or wiping the surface.  The condenser is stainless steel.  I have used citric acid to clean (so so) and PBW (okay).  Is there anything better?

[Humulus]

I've used a diluted Acid #5 from 5-star(goggles & gloves)...spray on and wipe off. This seemed to work well on the outside of our stainless fermenters. 

 

For or the inside of your condenser...yes, PBW then flush multiple times with H2O