Anyone had trouble with leaking quick drains?
I have had dripping occasionally from my wing's quick drains for a while. I went out to fly today (clear/warm/absolutely calm wind) and when i checked my fuel, one of the quick drains would not re-seal. I manipulated it thinking it wasnt seating or had a fleck of fiberglass causing it to drip. No luck. I drained the tanks and took out the quick drains. Both of them had a problem. The o-rings at the top of them were "worn" completely flush with the small indentation in the shaft used to seat the rings. The rubber o-ring should be 'fat' and sticking out from the indentations like a donut in order to seal. Essentially the 'donut' was 'chewed' around it's edge disallowing the seal to occur.
I run ethanol free premium from an oil company here that is reputable. I was wondering if anyone else has had this problem with ethanol free auto gas. Could this be related to some other additive to auto fuel?