Kind of off-topic, but how is it any different to dissolve CO2 in water vs
adding water that is highly concentrated with CO2?

If you add, a bottle of carbonated water, it would be there, and gone as
fast.... because it doesn't totally dissolve into the water, with the water
and circulate....

In theory, Amano started out by putting one bottle in a 10g a day for
several weeks and it was then he realized pressurized CO2 would effectively
deliver the correct absorption of CO2 into the water....

The fountain drink machine carbonates the tap water, then mix with
concentrated
syrup to form ready to drink soda. If you can dissolve CO2 into water, I
don't
see why you can't mix concentrated CO2 water(seltzler water) in with tank
water
to achieve the same result as carbonation with gaseous CO2.

Ok, try this, take a 5g bucket, measure your pH... wait 4 hours measure pH
again...

for a double blind comparison, fill the bucket up again and measure pH for
baseline, this time, pour several bottles of your desire into it, measure pH
again.... wait 4 hrs, check pH again... my guess is the Co2 will make no
difference to it, because in 4 hrs, it's dissapated... gone... like it was
never there.... in a tank with circulation agitation, it's gone even
quicker....