[alberg30] Chlorination of Ship's Fresh Water

[Marianne King-Wilson]

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.

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.

The tragedy in Walkerton has heightened public awareness of
water purity.

Marianne


John Birch wrote:

> Marianne;
>
> 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?
>
> 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?
>
> Thanks,
>
> John
>
> Marianne King-Wilson wrote:
>
>> My husband, who has a Ph.D. in organic chemistry and
>> works in scientific
>> affairs related to food safety, says, in true scientific
>> fashion, "it
>> depends".
>> Some of the variables would be the condition of the
>> water put into the tank,
>> the condition of the tank, and the piping to the tap.
>> The easy part is how you can tell if the water is safe.
>> It must have
>> residual chlorine at the tap.  In other words, the
>> chlorine won.
>> There is a simple test, and I will try to get the name
>> of the apparatus,
>> which determines in a few moments, the PPM of residual
>> chlorine.
>> If you have 5 PPM of chlorine at the tap, the water is
>> safe from all
>> bacteria.
>> To tailor this to your boat, keep adding chlorine,
>> agitating it, (tacking?)
>> and then testing until you have a residual.
>> I'll do some research about the apparatus and get back
>> to you.
>>
>> Marianne King-Wilson
>> Windward #369
>>
>> Jack Vanderloo wrote:
>>
>> >  what is the conventional wisdom
>> > regarding the chlorination of ship's water supplies?
>> How many cups per
>> > how many gallons?
>>
>> -------------------
>> ----------------------------------------------------
>> Failed tests, classes skipped, forgotten locker
>> combinations.
>> Remember the good 'ol days
>> http://click.egroups.com/1/4053/8/_/476031/_/959348682/
>>
>> -----------------------------------------------------------------------
>
> -----------------------------------------------------------
>
> -----------------------------------------------------------
>
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