Continue wrapping the tape to the mark you made on the filler tube.
Make sure the ematch leads are on opposite sides of the fill tube and keep 
the tape as tight as possible.  The first time is a bit difficult as all the parts
want to flop around but once you figure out a system it's not that difficult.
In lieu of teflon tape you can also use a brass tube to protect the filler line.  
Slide the tube over the assembly and butt against the preheater grain.

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