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Re: sodium bicarbonate/sodium carbonate

Ed wrote:

> What are the pros and cons of using sodium bicarbonate (NaHCO3) vs.
> sodium carbonate (Na2CO3) to regulate carbonate hardness?  Does it
> matter one way or the other?  Does either one affect the efficacy of the
> system?

Although both will raise carbonate hardness, sodium carbonate will
raise the pH a lot higher than sodium bicarbonate when initially
administrated.  For this reason, I don't think it's a good idea
to use sodium carbonate alone to raise carbonate hardness.

Louis Lin