On the high speed it will go fine for about 2 seconds, then i do definately
feel a hard pull then the vortex starts....at the low speed i've been
getting little bubbles slowly rising which lends me to believe that that is
the way to go and never a vortex

jason

"Don S" > wrote in message
om...
> >
> > 2.operate the drill at high (1000 rpm) which i can only do in 3-4 sec
bursts
> > before a vortex starts to form (which i obviously don't want)
>
> Jason,
> Does your vortex ever seem to explode out of the carboy? It
> seems that everytime I've operated my fizz-stick at high speed
> I can form this vortex and it seems to take on a life of it's
> own. At that point I can't stop it from foaming out of the
> carboy. I've often felt there was some sort of strange fluid
> physics involved here.
>
> Don