I wouldn't really use water and soap to do that.
Chuck the chain in a Jam jar full of isopropyl alcohol or petrol if you're feeling adventurous, screw the lid on and shake it.
( Slippery Mick, Fri 19 May 2017, 18:10, archived)

Fenwicks is good, plus less likely to take your face off

( drimble he'd been white, he'd been black, Fri 19 May 2017, 18:18, archived)