Silver Cascade (2 x 1 HP) with bypass valve

[piotres]

The one you posted for gomeler. Looks like you polished the pipes or just the brazed joints, than clear coated?

First I've cleaned brazing points by steel-wire brush, then polish pipes and brazing points together with polishing paste (before that I also polished driers using water sandpaper) - I always make it this way .