Date: 13 Nov 1997 09:41:05 +0100 From: "Niels.Asger.Nielsen" <Niels#d#Asger#d#Nielsen@mar.hha.dk> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg4326$foo@default> Subject: Tap water/vinegar on CP's?
Dear list
I would like to use tap water on my CP's instead of the expensive =
demineralised water I use now. I would therefore like to ask:
Charles Brewer: What kind of water do you and your friend add vinegar to? =
Normal tap water, rainwater or?
Charles Brewer wrote:
I have used up to a table spoon per gallon without any side effect. One =
long time CPer, I know, always adds vinegar and an air stone to the water =
that his CPs sit in. He claims it helps to control the growth of algae =
and stimulates plant growth by adding
needed oxygen to their roots.
Mark Fisher: Do you use your "bubbled" water on Your CP's? And what =
machine do you use for "bubbling" the water?
Mark Fisher wrote:
On a related note, tap water often has a high pH because municipal water
treatment typically drives off all the dissolved CO2, which raises =
the pH.
The best way to restore the pH of tap water is to simply bubble air =
through
it, or just let it stand exposed to air. CO2 will eventually dissolv=
e back
into the water, and drop the pH to it's equilibrium value. Example: =
here
in Austin, TX, our tap water is pH 10, but after bubbling air =
through it
for 36-48 hours, it stabilizes at pH 7.4 (our water is moderately =
hard, and
well buffered, BTW).
Why bother trying to lower the PH value when CP's grow better with baking =
soda! :-)
Randy Palmer wrote:
to get rid of acidit soil, one tablespoon of baking soda in one gallon of
water. I know most of you have heard it before, but I couldn't resist.
Good growing
Niels, Denmark
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