exactly the same problem i'm having, since the origonal went i've been using black ones as pheonix could'nt get any replacments from the US, but these go pretty quickly and i'm on my last 2-3 .. i dont know if the problem is with the nipple design or just inferior rings .. (phnaar phnaar) ...Originally posted by eddiecsd
Just wondering; have you had problems with the fill nipple on the nitro duck reg. I know mine keeps leaking out of the fill nipple, and even after replacement it managed to do it again. Is this a shared problem ?