That Fabulous Seattle KH
> From: Dan Simon <dan.simon at attws_com>
> I purchased the Tetra KH and GH kit yesterday. I am aware that Seattle
> water is very soft but geez!! I'm starting to wonder if I'm using the kit
> The KH kit says to add the drops until the vial turns light yellow.
> After 2 drops its clear and then on the third drop I start to see a
> faint "yellow-ish" color. However, there is no color change
> progression as the instructions indicate. Is the KH so low that it
> just isn't registering?
That is correct. During the rainy season (when water doesn't spend a lot
of time in resevoirs picking up carbonates), the KH is often < 1, which is
why the pH can fluctuate so much in the tapwater here. If you add a
little baking soda to the water, you'll see the blue start point of the
btw, to help read the kit better, put the vial on a white piece of paper
and read from above.
Erik D. Olson amazingly, at home
eriko at wrq_com