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RE: [APD] Kent RO Right Instructions & GH Testing

"According to a chemist who works for a major aquarium products company (and
who shall remain nameless), Kent's RO Right is merely a repackaged form of
Aquarium System's "Instant Ocean" salt mix. If he is correct, and his advice
to me usually is, it is capable of adding all the necessary ions and
electrolytes to recreate "typical" water values for RO water. Kent however,
is not very forthcoming when asked what they mean by "typical" - they just
gave me hype and confusion when I asked them about the subject last year.
Different lakes and rivers have different ratios of the various anions and
cations present, so I don't know where the term "typical" lies. Be that as
it may, RO Right is what I used for a few years to adjust the Total Hardness
of my RO water, and I had no problems with the product."
James Purchase

Kent marine doesn't tell you what is in the product so I stopped using it.
The problem with Seachem's equilibrium is that it overdoses K for the
recommended dose (gives you 60pmm when we are looking for 15-20).  I do it
the cheap way and get exactly what I want,

If 100% R/O 1/2 tbs seachem equilibrium = 6 dh (GH), 3/4 tsp baking soda= 6
dh (KH) to 5 gallon jug. Heat water to 74 F.
Alternative : 1/2 tsp of magnesium sulfate in 5 gallon will give you 14 ppm
mg.  Turbo•Calcium will increase the aqueous calcium concentration in 5
gallons of purified water by 30 ppm; this is about 1/4 teaspoon and gives
you a GH of 6.

You can get Calcium Carbonate (CaCO3) at a pool supply store, but prepare to
buy in bulk.  I finally got a lamotte test kit and have started to measure
my GH.  I've noticed that my doses accumulate, so you will have to figure
out what works for you.


Message: 2
Date: Tue, 14 Oct 2003 00:06:55 -0700
From: "Lorenzo Rota" <lorenzo1961 at hotmail_com>
Subject: [APD] Kent RO Right Instructions & GH Testing
To: aquatic-plants at actwin_com


I am using Kent RO Right to reconstitute RO/DI water.    The instructions 
say that it is recommended to use a TDS meter to set the proper level of 
Kent RO Right rather than a GH test.  The labels says this is recommended as

GH tests only measure Ca and Mg.  When I follow these instructions to make 
what they call 'soft discus' water, they recomend a TDS of between 
80-125ppm. But when I do a GH measurement when the TDS is in that range, I 
do not even measure 1dH.

Anyone else have the same experience when using Kent RO Right?

The label does caution to not exceed the recommended amounts(1/2 teaspoon 
per 10 gallons for 'soft discus') even if the GH test indicates differently.

Also..Id like to hear from people using Seachems Equilibrium on their 
experience with it.


Lorenzo Rota

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