<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<body text="#000000" bgcolor="#FFF0F0" link="#FF0000" vlink="#800080" alink="#0000FF">
No question, John. Lots of people do not like chlorine for a variety
of reasons. A good filter would be excellent. It goes without saying
that compliance with the recommended filter change schedule is the only
way to ensure any filter's efficacy.
<p>Having spent some time in the bottled water business, I recognize the
potential of parasites --giardia lamblia , for example, which is
not so remote a possibility as it was once. It has even been found
in municipal water supplies in major US cities. It is chlorine
resistant, and while filtration is often recommended before chlorination,
possibly post-chlorination filtering would have a dual purpose? A
water treatment specialist could give the best advice.
<p>The tragedy in Walkerton has heightened public awareness of water purity.
<p>Marianne
<br>
<p>John Birch wrote:
<blockquote TYPE=CITE>Marianne;
<p>Great points, one question though, I have read a number of articles
about chlorination and possible cancer links. Wouldn't a good quality
dechlorinating silver halide, activated charcoal water filter be prudent
to catch the extra chlorine added from the tank?
<p>Certainly chlorine has saved infinitely more lives by ensuring a safer
water supply than it may have taken from inducing cancer, but reducing
risk across the board seems prudent. So would the filter work effectively?
<p>Thanks,
<p>John
<p>Marianne King-Wilson wrote:
<blockquote TYPE=CITE>My husband, who has a Ph.D. in organic chemistry
and works in scientific
<br>affairs related to food safety, says, in true scientific fashion, "it
<br>depends".
<br>Some of the variables would be the condition of the water put into
the tank,
<br>the condition of the tank, and the piping to the tap.
<br>The easy part is how you can tell if the water is safe. It must
have
<br>residual chlorine at the tap. In other words, the chlorine won.
<br>There is a simple test, and I will try to get the name of the apparatus,
<br>which determines in a few moments, the PPM of residual chlorine.
<br>If you have 5 PPM of chlorine at the tap, the water is safe from all
<br>bacteria.
<br>To tailor this to your boat, keep adding chlorine, agitating it, (tacking?)
<br>and then testing until you have a residual.
<br>I'll do some research about the apparatus and get back to you.
<p>Marianne King-Wilson
<br>Windward #369
<p>Jack Vanderloo wrote:
<p>> what is the conventional wisdom
<br>> regarding the chlorination of ship's water supplies? How many
cups per
<br>> how many gallons?
<p>------------------------------------------------------------------------
<br>Failed tests, classes skipped, forgotten locker combinations.
<br>Remember the good 'ol days
<br><a href="http://click.egroups.com/1/4053/8/_/476031/_/959348682/">http://click.egroups.com/1/4053/8/_/476031/_/959348682/</a>
<br>------------------------------------------------------------------------</blockquote>
<hr>
<hr></blockquote>
<p>--
<p>Parry Sound, in the heart of Georgian Bay's 30,000 Islands,
<br>the big-water home of championship sailing races.
<br><A HREF="http://www.SailParrySound.on.ca">http://www.SailParrySound.on.ca</A> tells the story.
<br>Visit our windy, pristine waters for Sail Parry Sound's
<br>Shark Class World Cup August 19-25, 2000
<p>AND--the bid is in for Toronto Olympic Yachting events in 2008!
<p>Stressed out? Need a break? Visit this quiet, idyllic retreat
at
<br><A HREF="http://www.zeuter.com/~addvalue/">http://www.zeuter.com/~addvalue/</A>
<br>Some openings still available for summer 2000.
<br>
</body>
</html>