I added 1 lb of baking soda to 1,000 gallons giving me a KH of 179-200 ppm,
the pH, if anything, went higher into the 9s. Will check out the carbonate
cal. at Roark site. ~ jan

On Thu, 20 May 2004 13:09:15 -0400, Hal wrote:

Something I picked up he
- if KH is below 150 ppm or so, adding baking soda will raise KH and
shift pH down towards 8.4. Suggested dose 1/3 pound per 1000 gallons.
That will raise KH by 20 ppm. or about 1 degree. ½ pound per 1500
gallons.
- if KH is above 150 ppm or so, adding muriatic acid will lower KH and
shift pH down. Suggested dose 2 ounces per 1000 gallons.(per day)
Add acid to water, never water to acid!

So what is your KH?

Regards,

Hal

(Do you know where your water quality is?)