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Re: Cutting DO water
Hello Daniel,
You don't have to be a chemist to adjust the alkalinity (KH) or hardness
(TH) of your water to any value you want or, for that matter, adjust
*any* water parameter. The relationship is *linear*:
Assuming that your DO water is *practically* free of minerals, if you
add 1 volume of DO water to 1 volume of tap water, all the
concentrations will be cut in half, i.e. you will obtain a TH of 179/2 =
90 ppm = ~ 5 oGH. Alkalinity will also be cut in half, 154/2 = 57 ppm.
Best,
George S
Date: Wed, 16 Sep 1998 13:25:29 -0500
From: "Daniel Hawley" <dhawley at ibm_net>
Subject: RO water/Tap water
I have been using RO water for over a year because of the poor water
quality
here in Waco, Texas. I have been adding Kents RO Right, Dupla KH-Bilder
and
Duplagan to bring my KH to about 4 or 5. I have been considering adding
Waco
tap water instead to bring my KH to 4 to 6. I am not a chemist and I
don't
know how much tap water to add to the RO water. Here is the water
analysis
that I received from my water treatment plant.
Constituent Name Result
Total hardness as CaCO3 179 mg/l
Ph 7.5
Tot. Alka as CaCO3 154 mg/l
Bicarbonate 188 mg/l
Carbonate 232 mg/l
Nitrate (as N) 1.46 mg/l
I would appreciate any help that someone can give. I would like to know
how
many gallons of tap water I should add to bring water up to a KH of 4
or 5
and a reasonable total hardness to match. I have lurked on this group
for
quite awhile and have benefited by owning a beautiful planted aquarium.
Daniel Hawley