Brita filters

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Targol
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by Targol » 11/07/08, 00:55

fabio.gel wrote:Have you tested the PH of your water Before and after your filtration system?

I would be interested in the result?

Thank you


In any case, Citroën's results do not invalidate your experience of acidification by the reverse osmosis system, since it uses activated carbon filtering.
Are there osmosis filtering systems in "under the sink" format?
I thought it was bigger than that :|
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I Citro
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by I Citro » 11/07/08, 03:01

: Arrow: Yes there are small reverse osmosis units under the sink.
like this one

Nothing to do with what I have .
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little sparrow
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by little sparrow » 11/07/08, 09:30

Bonjour,

Tap water (unfiltered)
pH = 7.6 (ideal)
Chlorine = 1.6 (there are)

Water from my fountain (filtered)
pH = 7.4 (barely noticeable difference, or uneven reagent dosage?)
Chlorine = 1.3 (same remark as for pH)


hi Citro,
I don't really know what is the composition of your filter cartridge ...., but I hope it is not activated carbon .. !! ??
because a similar result on chlorine is absolutely not consistent with activated carbon, which has a very good efficiency on this subject .. !!

but this filter is presented in "double action" (sediment + chlorine) ..., very perplexed in view of this result before / after .............


@ Justemilieu ....;

I have already spoken enough about it ..., I will not repeat myself every time ...
I said, after all .. "everyone has their own ideas" ... and everyone believes what he wants .......
if you want to know more, more precisely, you just have to look for the info with the specialists of the question .....
(not aquaristic ..)


@ fabio.gel;

be careful not to generalize a very specific case, especially when you do not know the type of device, its exact composition, its quality and performance rate, its use ....
because "bad" devices ..., there are ... (counterfeit, low-end Chinese device ...), but without denying the case presented here and its impacts ....., it is not reasonable to 'thus judging a type of device in general ....... !!
(it is already not normal to have such a low pH at the output of the reverse osmosis unit ... !!!, therefore, there is a lot of doubt about the operation or the quality of this device ... but not to question all devices of this type! )

cordially
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by jonule » 11/07/08, 09:48

Hello,
what should be a good PH then?
what other device do you recommend? it makes a better PH?
Does the PH not depend on the initial PH, or the osmosis system corrects it automatically? how ,
please
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by the middle » 11/07/08, 10:21

(it is already not normal to have such a low pH at the outlet of the osmosis unit .. !!!, therefore, there is ample room for doubt about the operation or the quality of this device ...

: Idea: ho! maybe he installed a salt softener before ....
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by Targol » 11/07/08, 10:46

jonule wrote:Hello,
what should be a good PH then?


A neutral PH is 7,5 if I remember correctly.
The best is to get as close as possible to it.
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by jonule » 11/07/08, 11:03

from 0 to 14 it's not 7 which is neutral?

good, if the water is remineralized via a tank with limestone "for example" (method to make rainwater drinkable) it is re-stabilized, right?
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discus62
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by discus62 » 11/07/08, 11:30

Hello everyone, I'm a new kid, I've been going through this for a while forum and for once maybe I can add something to a discussion.

-The performance of the reverse osmosis unit is very poor since to obtain 1 liter of reverse osmosis water you need at least 4 liters of water, so that's 3 liters that go into the sewers.

-For the very low PH is not that surprising since the water that comes out of the membrane has a carbonate hardness which is zero, so there is no buffer effect and the PH can therefore vary greatly. And indeed by putting limestone stones the PH should rise quickly since the hardness will increase and stabilize the PH.

-For the difference that it can have between an osmosis unit that is used in aquariums and some domestic osmosis unit is that it can have a remineralization cartridge with the exit of the membrane. If there is another difference I would like to know it
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by I Citro » 11/07/08, 11:44

little sparrow wrote:Bonjour,

Tap water (unfiltered)
pH = 7.6 (ideal)
Chlorine = 1.6 (there are)

Water from my fountain (filtered)
pH = 7.4 (barely noticeable difference, or uneven reagent dosage?)
Chlorine = 1.3 (same remark as for pH)


hi Citro,
I don't really know what is the composition of your filter cartridge ...., but I hope it is not activated carbon .. !! ??
because a similar result on chlorine is absolutely not consistent with activated carbon, which has a very good efficiency on this subject .. !!

but this filter is presented in "double action" (sediment + chlorine) ..., very perplexed in view of this result before / after .............


My filter cartridge has flown a lot of hours ... :|
This surely explains its lack of effectiveness on Chlorine ... :?
It seems to me that the filtration uses a very famous "KDF" media.
I've heard that activated charcoal can cause some problems ...

I am having trouble getting supplies of spare cartridges at a fair price ... : Evil:
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the middle
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by the middle » 11/07/08, 11:51

:D Hello Discus, and welcome
Well yes, I have the same opinion as you.
Well..for water drinkers, a good reminder:
It is recommended by (I forgot who) to change the brand of water from time to time.history of minerals.
They are not the same from one region to another,
And ferrrrruginous water yes; alcohol no!
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