[Killietalk] Chlorine and Chloramine.

[listhub at libros_andante.mn.org]

Wright, Charles, Lee, ... and anyone else who cares to comment.

First off I am sorry I came in late on this thread.  I was out of town for a
few days.  Reading the thread made me think that I had not done any testing
since I installed my new RO unit last spring.  I am using a Kent standard (not
Bare Bones) unit and I run the output from that through a Aquarium
Pharm. Tap Water Purifier.  The water comes out 0 to 1 on the TDS meter.

I live in St. Paul Minnesota.  Municipal Water Analysis which I request from
the Water Department every year says 3 ppm Chloramine is used in the water. 
The water is relatively soft to begin with, about 160 ppm from the tap.  For
this reason I use the waste water from the RO unit for all my Nothos.  It is
about 190 to 200 ppm coming out.  In the past I have always used Prime and a
Charcoal Filter in this water before it goes in the tanks.

Here is the results of my testing and I am very confused.  Let me say that my
test kit is the expensive HACH Chlorine test kit.  Reagents are less the a year
old.

Water comes out the waste of the RO unit at 1.8 ppm Chlorine.  This water goes
through the prefilter but not the membrane of the Kent RO unit.

Here is the curious part ...

Leaving that same water in a storage container for 48 hours tests 0 for
Chlorine!

Now as stated above the St. Paul Water Analysis shows the Chloramine is the
compound that is in the water to begin with and the water tests 1.8 ppm for
Chlorine out the unit.  Conventional wisdom is that Chloramine does not
evaporate out.  However 48 hours dissipates all Chlorine.  During that time the
water is in a standard plastic 50 gallon garbage can, el cheapo from Home Depot.

All comments welcome
john

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John N. Alegre                   o
Andante Systems               o
eCommerce Consulting       o
Custom Web Development <*{{{{}><
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