[GSAS-Member] CO2 day 2

[Matt Staroscik <matt@wrongcrowd.com>]

I went home at lunch today to check the tank. I picked up new pH and
hardness test kits on the way. Per the new kit pH is somewhere between 6.8
and 7.0--it's just hard to tell. (It was more clearly 6.8 on the old kit.)

The pH probe was stable around 7.0x and since I think the calibration went
OK, I am going to believe it for now.

The old KH kit was toast. It reported 3 dKH. The new one reported less than
1 dKH, from the tank AND the tap. I was expecting more like 3 from the tap
based on what some others said but we probably have different water
companies.

Does anyone routinely add sodium bicarbonate to boost KH? If I really have
less than a degree it seems prudent to try and keep it around 3-4 dKH.

I increased the bubble rate to about 3 and we'll see what it looks like in a
couple of hours. The increased rate dropped the pH by about .07 while I was
eating lunch.
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