On Thursday, September 12, 2019 at 2:58:49 PM UTC-7, AMuzi wrote:
On 9/12/2019 2:30 PM, incredulous wrote:
I recall from this forum 10-15 ago that it wasn’t hard to demonstrate that the important dirt about chains is inside not on the chains; and the bad news is that it was difficult or futile to rinse or flush all the wear-causing abrasive grit from plain-bearing surfaces.

Harry Travis
Portland OREGON USA

+1
excellent summary (except for ultrasound, which is different
from other cleaning techniques)

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

That super heavy detergent that I use - you can put what appears to be a clean chain in it, let it sit for 10 minutes, shake the chain and the water/detergent blackens from the residue that is washed out of the interior bearing surfaces of the links.

The only negative I can see is that it dulls the finish on wheels, so you always have to pull the chain to clean it. Easy enough with quick links.