LOL You are absolutely right! It must have been late! It was 2 hrs 20min
Not 1hr 40
Do you think that is why it went yellow today?
Or was it from the runaway theory?
Because it got a good stir every 20 min session.
Beth
---
If I've read your times right it took 2 hours 20 minutes.
For that volume of water I'd say you definitely should be using some form of
stirring.
Anything over 300ml {a glass} I incorporate stirring without question.
You can make your own magnetic stirrer using the fan and one of the magnets out
of the hard drive from an old computer.
Play around with google and you'll find ideas, they're dead simple to make.
N.
>
> It went yellow this morning!
> Now what?
> Beth
>
> > Crikey, mine takes five and a half
> > hours to make 500mls! dee
>
>
> > On 5 Nov 2010, at 02:03, Beth wrote:
> >
> > > My Final Results:
> > > Hanna Pwt meter reading
> > > Started with 0.2 distilled water
> > > +20 min = 0.3
> > > +20 min = 0.9
> > > +20 min = 3.4 some black res on one electrode(off with
> > paper towel)
> > > +20 min= 5.6 some black res on both(off with pt each
> > time after this)
> > > +20 min=10.4
> > > +20 min=17.8
> > > +10 min= 20.8
> > > + 5 min= 23.8
> > > + 5 min= 25.2
> > >
> > > total 1 hour 40 min
> > > 750 ml water(3 cups)
> > > 25.2 x 0.4 = 10ppm
