We have Arrowhead as our main brand so I don't really know. Arrowhead
seems to have too many minerals for my taste--it has in the past left
my kettle scaly with calcium carbonate. Not every bottle will do it
but the mineral content is not standardized. You can call poland
spring and find out the PH and mineral content. Roy Fong swears that
neutral or alkaline water is better.

On Dec 10, 11:27 am, wrote:
> On Dec 10, 3:49 am, Danica > wrote:
>
> > I would like to mention that my tea group in LA has tried a lot of
> > waters, the 365 Whole Foods water is preferred spring water. However
> > a few of us swear by reverse osmosis water to which we add back a few
> > drops of concentrated ionic minerals (I use concentrace brand). It's
> > more consistent and better than most spring waters.
>
> How does Poland compare to other spring waters?