Water filters Domestic use
 

Are the six month change cartridge type any good? If not, what is
recommended?

I have seen a very strange one under a sink that seemed to have a
thing that looked like a gas bottle on it and made load moaning noises
when used. Damn nice water though.

EricP wrote:
Are the six month change cartridge type any good? If not, what is
recommended?

What are you trying to achieve? If it's just a taste improvement, then
activated carbon filters will do a reasonable job.


I have seen a very strange one under a sink that seemed to have a
thing that looked like a gas bottle on it and made load moaning noises
when used. Damn nice water though.

That was probably an RO system. We have one to treat our drinking water,
which comes from a well. They are extremely effective, and the water
tastes great.


--
Grunff

On Thu, 21 Oct 2004 17:38:34 +0100, Grunff wrote:

Are the six month change cartridge type any good? If not, what is
recommended?

What are you trying to achieve? If it's just a taste improvement, then
activated carbon filters will do a reasonable job.

Our water tastes like a solution of chalk and medicine.
We want a volume source of clean water for coffee, tea, cooking,
drinking and the steam iron.

I am sick of that jug thing that you have to fill up all the time and
fancied turning one of those little taps on. :))

EricP wrote:

Our water tastes like a solution of chalk and medicine.
We want a volume source of clean water for coffee, tea, cooking,
drinking and the steam iron.

I am sick of that jug thing that you have to fill up all the time and
fancied turning one of those little taps on. :))

Hmm, well, an activated carbon filter will help a little, but if you
want really clean water, bite the bullet and fit an RO system. They've
come down in price enormously over the last few years - I've seen some
on the market for the £200 (but can't vouch for their quality).


--
Grunff

EricP wrote in message news:

Our water tastes like a solution of chalk and medicine.
We want a volume source of clean water for coffee, tea, cooking,
drinking and the steam iron.

I am sick of that jug thing that you have to fill up all the time and
fancied turning one of those little taps on. :))

carbon, or carbon and exchange resin. Carbon gets general muck out,
resin gets minerals out if necessary. Carbon filtering is very cheap.
Trouble with carbon is they soon become bacterial breeding grounds, so
do need regular relpacement.

RO also works, but at a price, unless youve got means to heat the
filters to red heat yourself to reactivate them.


NT

N. Thornton wrote:

RO also works, but at a price, unless youve got means to heat the
filters to red heat yourself to reactivate them.

???

RO membranes are organic. Heating them to red heat will cause them to
burn. It will definitely not reactivate them!!

They are fairly cheap these days - £30 is about what I pay for the RO
membrane in my system, once a year.

--
Grunff

On 22 Oct 2004 05:24:07 -0700, (N. Thornton) wrote:

EricP wrote in message news:

Our water tastes like a solution of chalk and medicine.
We want a volume source of clean water for coffee, tea, cooking,
drinking and the steam iron.

I am sick of that jug thing that you have to fill up all the time and
fancied turning one of those little taps on. :))

carbon, or carbon and exchange resin. Carbon gets general muck out,
resin gets minerals out if necessary. Carbon filtering is very cheap.
Trouble with carbon is they soon become bacterial breeding grounds, so
do need regular relpacement.

RO also works, but at a price, unless youve got means to heat the
filters to red heat yourself to reactivate them.


NT

A friend has offered me a seven year old RO "4 way" system that is no
longer in use. (Supplied by "Freshwater Supplies")(No unit details
available yet)

I will have a look at it with a view to reconditioning it. This would
appear to involve new filters, and taps at mains and sink. It may be a
viable proposition when I disconnect it and can see what is needed.
I am working on a couple of years running costs and purchase price for
one of the simple shed cartridge types.

Grunff wrote in message ...
N. Thornton wrote:

RO also works, but at a price, unless youve got means to heat the
filters to red heat yourself to reactivate them.

???

RO membranes are organic. Heating them to red heat will cause them to
burn. It will definitely not reactivate them!!

They are fairly cheap these days - £30 is about what I pay for the RO
membrane in my system, once a year.

not seen anything like that, the ROs I've seen are fired clay, and you
clean them out in a furnace. Deinitely wouldnt heat organics red,
unless you want to convert them to carbon filters :)

NT

N. Thornton wrote:

not seen anything like that, the ROs I've seen are fired clay, and you
clean them out in a furnace. Deinitely wouldnt heat organics red,
unless you want to convert them to carbon filters :)

Odd. What application was that in?

The only RO membranes I've come across have been Cellulose Triacetate
(older technolgy, cheap, limited life) and Thin Film Composite (newer
material, used to be more expensive but price dropping, long life).

--
Grunff

Grunff wrote in message ...
N. Thornton wrote:

not seen anything like that, the ROs I've seen are fired clay, and you
clean them out in a furnace. Deinitely wouldnt heat organics red,
unless you want to convert them to carbon filters :)

Odd. What application was that in?

The only RO membranes I've come across have been Cellulose Triacetate
(older technolgy, cheap, limited life) and Thin Film Composite (newer
material, used to be more expensive but price dropping, long life).

Domestic water filters, running at mains pressure. I think they may
have been a bit ancient. I have a book that explains how to clean them
out by heating them red hot. They just look like clay tubes closed at
one end, the water percolates through them very slowly.


NT