new here guys plz go eazy on me. have my sigelei FU chai , the o rings , the 2 thin ones when you pull off the top cap are junk , the ones pre installed fell apart when i first opened it, the spares , that came with it also fell apart when i touched them to install? i have a o ring kit for automotives, nothing fits, i have a few sub ohm heads, but really want to drip. my son drips and i love the flavor. i contacted the seller, no exchange after 3 days? explained don't want exchange. I want to vape them, willing to buy a dozen o rings, or one of you have a trick,, please help guys , sorry for the rant. Frank D.