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RE: OT : Filtered Water Taps
As a footnote to my previous I have just had a chat to our sampling
officer.
The kitchen tap is generally the most contaminated tap in the house, peices
of
food detritus etc generally become lodged inside the tap head and this area
becomes a breeding ground for viruses and bacteria. In commercial kitchens
tap
heads tend to be made of brass and are removable so that they can be
cleaned
and sterilized. If your system removes residual chlorine at the entry point
in
the house the water in the pipework runs can become infected / contaminated
>from
water run for a little bit before drinking it, to clear any potentially
contaminated water. This isnt so critical for healthy adults, but for the
very
young and the elderly or infirm this may cause significant harm. To give
you an
idea of how this affects water in real terms - our sampling officer either
sterilizes tap heads with a blowtorch (if they are all metal) or with a
concentrated sollution of FiChlor. By not sterilozing the tap heads in
kitchens
we can have upto a 25% failiure rate on samples.
This is particularly critical as the kitchen tap is the principal drinking
water tap in most houses.
Simon
Quoting simonr@f2s.com:
> <html><body>
>
>
> <tt>
> We have over 400 private water supplies in the Moorlands and they have
<BR>
> installed numerous types of water treatment. Not all Ion exchange
systems
> rely <BR>
> on salt, some are sealed units (the size of large acetylene bottles)
and last
> <BR>
> about 5 years, some use doulton 'candle' type ceramic filters which
remove
> some <BR>
> minerals. There are the electromagnetic sacrificial type (that attach
around
> <BR>
> the outside of the pipe). Some use point of delivery systems (like the
> separate <BR>
> sink tap - which are like large britta filters), all have pros and
cons, one
> <BR>
> thing that they all have in common is expense. The downside of all of
these
> <BR>
> systems is that they remove any residual chlorine from your drinking
water
> and <BR>
> this is what prevents bacteria breeding - most of the systems that are
<BR>
> installed on private supplies have an inline UV filter at the point of
> delivery <BR>
> to guarantee sterilisation. If you use a whole hose softener, once
more you
> are <BR>
> probably removing your residual chlorine (disinfectant), if you then
have
> loft <BR>
> storage of this water, you may be encouraging bacterial growth. Check
this
> out <BR>
> with your supplier before you install.<BR>
> <BR>
> Simon<BR>
> <BR>
> Quoting Paul Watkin
<groups@watkinworld.co.uk>:<BR>
> <BR>
> > <html><body><BR>
> > <BR>
> > <BR>
> > <tt><BR>
> > The house I am in the process of buying has both a cartridge
based
> water<BR><BR>
> > filter with a separate tap as well as a whole house water
softener
> that<BR><BR>
> > takes up an entire kitchen cupboard!! Haven't tasted the
water so
> can't<BR><BR>
> > comment on it, however at my parents house, a litle over a
mile away
> as<BR>
> > crow<BR><BR>
> > flies, the water is okay if a litle hard, in this case a
brita
> filter<BR>
> > makes<BR><BR>
> > very litle difference to the taste of the water in my
> opinion.<BR><BR>
> > <BR><BR>
> > I would also be interested in peoples views on these things
both
> whole<BR>
> > house<BR><BR>
> > and cartridge based as I am seriously considering having the
whole
> house<BR>
> > one<BR><BR>
> > ripped out as cupboard space in the kitchen is somewhat at a
> premium<BR><BR>
> > <BR><BR>
> > Paul&nbsp; <BR><BR>
> > <BR><BR>
> > -----Original Message-----<BR><BR>
> > From: Ben McCormack [mailto:ben@xxxxxxx]
<BR><BR>
> > Sent: 22 January 2004 13:39<BR><BR>
> > To: Home Automation List<BR><BR>
> > Subject: [ukha_d] OT : Filtered Water
Taps<BR><BR>
> > <BR><BR>
> > Hi all<BR><BR>
> > <BR><BR>
> > Hopefully someone on the group will be abel to help
me.<BR><BR>
> > <BR><BR>
> > We live in a hard water area and usually use a Brita Water
Filter
> for<BR>
> > our<BR><BR>
> > drinking water. Now I am getting fed up of having to buy the
> cartridges<BR><BR>
> > every month or so.<BR><BR>
> > <BR><BR>
> > So basically I am looking for one of those systems that is
plumbed in
> to<BR><BR>
> > provide filtered drinking water that will not scale the
kettle up.
> <BR><BR>
> > Does anyone have any recommendations? I am not interested in
> softening<BR>
> > the<BR><BR>
> > whole supply;y as I like hard water to wash
etc<BR><BR>
> > <BR><BR>
> > Cheers<BR><BR>
> > <BR><BR>
> > Ben<BR><BR>
> > <BR><BR>
> > <BR><BR>
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