Whats the benefit of vapor degrease vs the toothbrush in a pan of solvent followed by rinse in technical grade technique?
Follow-up Answer 3 We’re talking about trying to remove stuff down to the molecular layer level here! A toothbrush and pan of solvent simply spreads the crap around. Any physical rinsing you do can only involve a tiny fraction of the solvent volume a vapor degreaser ‘uses’ in a few minutes. And remember, by definition, the vapor in a vapor degreaser is freshly distilled and therefore free of higher molecular weight crud even though the liquid volume may be loaded with it. Follow-up Question 4 If, as you suggest, the oil drops built up slowly over quite a period, I suppose that would argue the cold trap was not functioning, or was so fully saturated itself it was no longer functional. Follow-up Answer 4 No, I didn’t say the ‘contamination’ built up over a long time. From your description of the vent problem, I think the major portion was quick. The air blew the DP’s oil curtain into the column. To coalesce into drops may have been slower, but not days or weeks. Think about a bathroom wi
