Drinking water filters - when to change element?

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David Micklem wrote:

<snip nice summary>
Thank you David, that was most informative. And a nice bit of reading for me to do next time I have a spare hour or two.
Let me clarify my position. I'm not pro fluoridation, neither am I anti it. I am very much anti scare-mongering conspiracists.
There is a certain group of people who will happily jump on the 'toxic crusade' bandwagon at any given opportunity. Let's not forget that chlorine was labeled 'the devil's element' by a certain environmental group not so long ago.
--
Grunff


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As we all know chlorine causes female polar bears to grow big willies.
Or are you a member of chlorophiles.org.
A.
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Grunff wrote:

Hear hear.
Undubtedly a return to a diet consisting of meat, nuts, and vegetables with zero starch or sugar in it would improve all our teeth, not top mention fixng obesity as a problem forever. In the meantime, fluoride on the evidence, does something that stops kids teeth rotting. Whatever the mechanism.
If you don't like it, buy bottled water and poison yourself with that instead.
Its a function of age, people my age can remember friends and relatives dying of bronchitis, being crippled by polio, dying of scarlet fever, of babies born deformed by mothers who cauight german measles, and indeed catching it - and mumps, and ordinary measles, ourselves. And having our teeth ripped to pieces by NHS dentists on a rate for the job, who forebore using expensive anaesthetic. Who had at least 4-6 cases of food poisoning a year, befor refrigerators existed.
And who still managed to survive in asbestos roofed houses heated by asbestos lined stoves drinking out of lead line water fountains and breathing lead filled petrol fumes. AND be healthy enough with it, and we ain't dead yet.
And really came to appreciate things like MMR, polio jabs, TB jabs, smallpox vaccinations, tetanus vaccinations, chlorine in the water, and fluoride, and many many other things. Including food hygiene standards, refrigerators, central heating and the like.
Chrsut, today there is probably some lobby group or other lobbying for sandals, on the grounds that otherwise their human rights will be violated by ingrowing toenails.
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snipped-for-privacy@a.com (Adrian Sims) writes:

Citations, please. Peer-reviewed journals, or equivalent. Not loon websites.
--
"The road to Paradise is through Intercourse."
The uk.transport FAQ; http://www.huge.org.uk/transport/FAQ.html
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Why would a government spend money on something like this out of ignorance or political reasons? Does it change Socialists into Blairites or something?
--
*We are born naked, wet, and hungry. Then things get worse.

Dave Plowman snipped-for-privacy@argonet.co.uk London SW 12
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wrote:

You can just never tell with governments. Depends on who has who's ear at an opportune moment.
Look at the current Part P proposals as a good example.
Personally, I'm not particularly worried about the toxicity of flouridation - as others have pointed out there are natural occurences of flouridated water and no statistical evidence about adverse effects.
This isn't similar to chlorination of the water supply - that is a treatment to prevent water-distributed diseases. This is mass medication via the water supply, and that is a very slippery slope to go down.
-- Richard Sampson
email me at richard at olifant d-ot co do-t uk
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RichardS wrote:

Not half as slippery as mass deception, and scaremongering, which have been going on for years with no end or decrease in sight.
I think the biggest joke of all was whaen dear old Edwina Curry got
sacked for telling the unplatable truth - that free range eggs are
liberally dosed with slamonella to a far higher level than 'factory farmed' ones.
A statement that my ageing mother, who grew up on a farm and won't
ever touch an egg since, will support..

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Dave Plowman wrote:

Governments have little monopoly on politics.
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snipped-for-privacy@a.com (Adrian Sims) writes:
[17 lines snipped]

Only by loons. Do you have any non-loon sources? The website you posted earlier is a loon one.
--
"The road to Paradise is through Intercourse."
The uk.transport FAQ; http://www.huge.org.uk/transport/FAQ.html
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snipped-for-privacy@a.com (Adrian Sims) writes:

No it isn't. At least not in the doses involved in water fluoridation.

I trust you don't eat iodised salt?
--
"The road to Paradise is through Intercourse."
The uk.transport FAQ; http://www.huge.org.uk/transport/FAQ.html
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Huge wrote:

Or polar bear liver. Overdose of vitamin D or something. Deadly. Of course without vitamin D you die as well.
Nature has seen fit to provide us with lots of natural hazards. As well as naturally fluoridated water. Observations that teeth decay was less in these areas, and that no one died perceptibly younger, or suffered ill effects like trying to take over the world (Austrian Invincible Dictator Syndrome) was what led to the decision to put teeny amounts in drinking water.
Who was it calculated that potatoes would not pass current FDA screening? Too much arsenic or summat.

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[22 lines snipped]

Actually, it is of no consequence in adults.
--
"The road to Paradise is through Intercourse."
The uk.transport FAQ; http://www.huge.org.uk/transport/FAQ.html
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Grunff wrote:

Martin is correct. Activated carbon holds onto some compounds well and others weakly. When it gets heavily loaded the strongly held compounds start pushing the weakly attracted compounds off. Fortunately most toxic compounds are strongly attracted but there are possible exceptions which is why manufacturers cover their backs by recommending frequent renewal.
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Andrew Mawson wrote:

Used to use Brita filters. Changed em about every 18 months or when the thing they went in went green from algae.
Surprisngly effective.

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If you do a 'blind' test can anyone actually tell the difference between fitered and unfiltered water?

I suspect it may well be more placebo effect than filter! :-)
--
Chris Green ( snipped-for-privacy@x-1.net)

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Hi, I live in Scotland and do not use a filter and drink the water straight from the tap but when I visit my son in Newbury his water tastes terrible straight from the tap so I bought a filter jug and it does make a difference. I'm trying to persuade him to fit a filter for his water but he drinks bottled water(comes in brown bottles or cans) and since he lives alone he does not think the expense is justified. Ron
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Do a real comparison by standing the unfiltered water in a jug too. If chlorine is the problem then this is supposed to make a difference.
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straight
he
Chilling water in a bottle in the fridge is a surprisingly effective method for removing unpleasant tastes as well.
I no longer bother with filters and the like. I drink bottled water, but that's mostly carbonated stuff and it does have a pleasant flavour of it's own.
cheers Richard
-- Richard Sampson
email me at richard at olifant d-ot co do-t uk
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RichardS wrote:

Yup. Its all the magnesium, sodium and calcium ions in it, and provabaly fluoride as well.
:)

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snipped-for-privacy@isbd.co.uk wrote:

Nope, not where I am. I can tell from the smell and the taste straight away if it's filtered water or not. Non-filtered water is disgusting here (north downs hills, surrey). Equally hard (if not harder) water in cambridge tastes fine straight out the tap.
I've done a 'blind' test (with help) and nailed the unfiltered straight away. Disgusting stuff.
Velvet
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