I could not spend a lot of time yet, but it looked ok from what I saw.
As to acid reduction, you may want to add something on potassium
carbonate and/or potassium bicarbonate since they can be used later to
correct high acid wines.

Joe

wrote:
> Hi Winemakers-- I recently published a website, www.iwinemaker.com, and
> I'm looking for feedback from beginning and experienced winemakers.
> iWinemaker is mostly a collection of calculators that are meant to
> provide the right amount of additives for fermentation, acid
> adjustment, fining, oaking and sulfite based upon individual quantities
> of must, juice or wine entered. I want to make iwinemaker useful, easy
> and above all accurate. I'd really appreciate it if anyone interested
> in this sort of thing would briefly check the site out and give me an
> indication as to whether I'm on the right track.
>
> iWinemaker is a free site and I'm hoping to have any bugs worked out
> before this year's harvest so winemakers can take advantage of it.
> Again, I'd really appreciate your feedback either on this forum or via
> an email think that's on the site.
>
> Thanks in advance,
>
> Ron Seide
> iWinemaker.com