We use 50 L carboys of different solutions at work.

they are fairly well sealed but we have to degas (deaerate actually)
them every day. You do not notice much if you missed a day....but
after a week I have seen that the solutions had completely "regassed"


Brad wrote:
> I've used both and to be completely honest, I couldn't tell you with
> certainty which solution would cause the effect. (Could be both...) I
> realize the added benefits but am just pointing out my observations.
>
> I didn't know about the oxygen transfer through water. I would imagine that
> it would be very slow.
>
> Thanks,
> Brad
>
>
> "Droopy" > wrote in message
> ps.com...
> > Do you use sodium or potassium meta?
> >
> > It could be potassium bicatbonate forming from dissolved CO2.
> >
> > One benefit SO2 has that has not been mentioned is that it protect from
> > oxygen transfer across the airlock. That is oxygen dissolved into the
> > airlock water then is released on the wine side.
> >
> > It is slow, but it can happen...the effect of which is probabally
> > negligable anyway as long as you keep your carboys topped up.
> >
> >
> > Brad wrote:
> >> I've used both with no ill effects what so ever from using just water.
> >>
> >> I have however noticed that if I don't change the metasulfite solution in
> >> the airlock in a timely manner it develops a -- how to describe it --
> >> haze
> >> or something.
> >> I'm not sure what it is.
> >> I don't know if it's harmful.
> >> I do know that I don't like it and it makes me nervous. Can anyone tell
> >> me
> >> what they think it is?
> >>
> >> Brad
> >