Add one or two of the smaller packages of supermarket baking soda and
re-check the pH. In a lab the pH would be above 7.5 for a solution of
baking soda. It is also usual to add some calcium carbonate for hardness
too. That also provides some buffering.
--
Jim and Sara Humphries, Victoria, BC
Webwarlock wrote in message
...

OK, so I got a pond kit to test my bond.
I read it as the ph level was too high and the total buffering
capacity was too low. According to the instructions I have to add
Sodium Bicarbonate (baking soda) to bring it up.

My question is, is the standard baking soda in the grocery store ok to
use as long as I just get pure baking soda? If so how much should I
add?
My pond is about 2000 gallons.

Thanks for the info.