"~ jan JJsPond.us" wrote in message
...
How big a pond Rick, and what was the pH before adding BSoda?

I've got a 1000 gallon lily pond registering 9.0, I added 4 lbs of BSoda
over 4 days and had a pH of 9.0-9.2. ~ jan


Hi Jan,
Use up some KH with muriatic acid, 2oz per 1000 gallons per day until the pH
is 8.4 or the KH is 200 ppm, whichever comes first. Paraphrasing an
erstwhile recpond chemist you have excess carbonate and/or hydroxide and
using the acid will leave you with bicarbonate which will stabilize the pH.
HTH -_- how
no NEWS is good