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Blue water/ yello water
>From: mark.fisher at tpwd_state.tx.us
>Date: Wed, 12 Mar 97 11:13:45 cst
>Subject: Water color
> >If you don't believe me, do
> >the test that I suggested. . .
> >Remember, pure
> >water will have a light blue hue when you put it in a white
> I do ALL my water changes in a five gallon white poly bucket, and I
> can assure you my water is not yellow. The tank water is not yellow
> and the bucket water is not yellow; it is colorless.
> I must also disagree with your observation that you can see a light
> blue hue in your bucket. It is true DEEP bodies of water appear blue
> because the other colors are more readily absorbed, but you would only
> see this phenomenon in water that is several FEET deep, not inches.
> Red light is absorbed first and can penetrate as deep as 20 feet.
> Blue light is absorbed last, and can penetrate over 1,000 feet.
> This information is available in any basic oceanography or limnology
Be that as it may, there IS a light blue hue in my 5-gallon poly bucket when
I draw it full of tap water and view it in the presence of sunlight. I just
looked at the same bucket of water, which has been treated for chloramine
and aerated for over 24 hours; it had no blue hue, but was viewed under
incandescent light. I have moderately hard tap (<>140ppm) with whatever
standard component of fluoride might be in there, as is typical for Clifton,
NJ. Now, is the hue gone because of mineral loss? Fluoride?
Chlorine/chloramine? The different lighting? I don't know. And I really
can't experiment; I'm on crutches after a recent knee surgery and haven't
done a water change for over two weeks. It was tough enough getting this
bucketfull. Any volunteers?
By the way, anybody want to replant a floating contingent of micro swords
for me? 8)