ORIGINAL: seanreit
Those fill valves leak, ask Todd at Dreamworks, they are pieces of junk, originally put out by air pac.
Get the BV fill valve, have worked flawlessly for me for years.
Actually...that is not the case at all. I use these perticular valves in my personal aircraft and while we do have a defective one now and then, they are quite good valves. They either leak from day one or not... I have pressure checked the rest of the inventory I had in stock and only found one unit (out of 78) leaking.
Todd