dkmc
Diamond
- Joined
- Jan 13, 2002
This is a copper-brass system, it's a refrigerated air dryer. The compressor has oiled up the tubes and I'm trying to de-grease them. I pumped water with Dawn in it thru this thing for about 3 hours today alternating flow directions. It made piles of suds but it looks nearly unchanged from when I started. Any ideas on better chemical choices to get the job done? I'd rather avoid flammables like diesel fuel, etc. I thought about cleaning vinegar but I'm not sure if that'll cut oil as opposed to scale in a water filled exchanger.