KH is a measure of the buffering capacity of the pond. GH is the test for
hardness. Both read out in degrees hardness, but the difference is one
reads carbonate hardness (KH) and the other reads calcium hardness (GH).
The calcium hardness is the measure of the hardness of the water, making
soap not lather.
--
RichToyBox
http://www.geocities.com/richtoybox/index.html

"Roy" wrote in message
...
Isn't total alkalinity or KH actually a measurement of the waters
hardness?




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