- 19 months ago
Working on my first rigid tubing build. Not entirely sure how to fit the compression fittings on the petc tubing. I have EK fluid gaming's aluminum fittings, they are 16mm OD 12mm ID, and 12/10mm tubing. There are 3 O-rings, one on the bottom threads (irrelevant to my question), another that goes on the tubing and the third stays inside the fitting. The third one, is the tubing supposed to fit inside the ring? I ask because it's a really, really tight fit even after using alcohol as a lubricant and I can't get it all the way in. Any other way and the tube just comes right out of the fitting.