Hmm, i think you again misunderstanding, precipitation means the chlorine precipitate but does not mean it totally does not present in water.
Let get an example, when the pipe full of bacteria, since you said that chlorine can killed bacteria 99%, if the chlorine can effective 99% when it no precipitate, when it precipitate and when water stagnant, it effectiveness may decrease to 50% or lower. And here again, in my previous post I does not state any UV that filter is a "must". Just it also one of the suggestion and way that effective to killed bacteria. It just a choice for consumers who can afford and want it. At last still based on their choices.

So that, you no need to have so big reactions or what in your previous post (such as woman(even i am not that age), or "you own theory" and even keep mention Amway or what (there is no hard selling ) since you said it just a discussion, there is no point for keep misunderstanding and quarrel for it, there is meaningless.

This post has been edited by Ch33r: Jun 5 2017, 09:53 AM

Your last paragraph is unnecessary. I repeat again, this is not a quarrel, you posted an opinion in the public forum and I'm responding to you, constructively. Let's not sway away from the topic discussed.

I was taken by surprise when you mentioned Chlorine don't evaporate, it "precipitate" instead. I'm interested to find out the truth and learn from you.
You mentioned that Chlorine will react with potassium or magnesium and produces a new insoluble substance in the "Chlorine precipitation" process. If I'm not wrong, the new substance should be potassium chloride crystal, KCl right ? But according to Wikipedia, the solid KCl crystals dissolves readily in water and its solutions have a salt-like taste. So since KCl is water soluble, how can "precipitation" ever taking place?

Sis, you are a trained water filter re-seller from a reputable company, I expect constructive reply from you.

Please every time read clearly the post first ya. First, I does not mention that chlorine don't evaporate but precipitate instead. As you mention that chlorine melting point is -101°C means it will evaporate on that stage, but precipitation is not related to melting of chlorine to become precipitate. Chlorine will melt and also will precipitate but is in different situation.

And here, remember that chloride (Cl-) is not the same as chlorine (Cl2). Chlorine is used in small quantities (< 1ppm) to disinfect public water supplies and treat swimming pools (< 5ppm). Although chlorine does produce some chloride, it will be neglible. However, Potassium chloride (KCl) is a metal halide salt composed of potassium and chloride but not chlorine which is totally different from chlorine. Of course, Potassium chloride (KCl) is soluble but there is nothing related to chlorine.

https://www.nsf.org/newsroom_pdf/cons_dw_ch...oramines_fs.pdf (From NSF, please read it)

In many water supplies, the most serious health threats are posed not by chemicals, but by infectious organisms (bacteria) in the water. Chlorine (Cl2) is a major disinfectant that is cheap and kills most of the serious disease-causing bacteria in the water. However, chlorine disinfection results in a wide variety of by-products. One class of chlorination by-products, known as trihalomethanes (THM's), are suspected carcinogens. Because of concern about these by-products in the water supply, chlorine is now kept to minimum levels , and other methods of disinfection are being used more frequently. Chloramines form more stable disinfectants and pose less risk of harmful by-products, but cost more to use. Other methods focus on removing the organisms through coagulation, sedimentation, and improved filtration.
It doe not said that chlorine cannot killed bacteria but since chlorine will react with naturally-occurring material in water to form by-products which may pose health risk in high level so now it also kept to minimum levels.

There are many ways that our water will be polluted that we cannot control. Such as industries, they typically do not actually consume much water (the water is used for applications, such as cooling and processing, that do not significantly diminish the amount of water), so the amount of industrial wastewater is generally very large. Industrial wastewater may contain many contaminants, such as toxic metals, organic chemicals, and radioactive materials. Before it can be returned to the water supply, this wastewater must be carefully evaluated and treated. Then, the industrial wastewater, like municipal wastewater, is released into rivers, lakes, or estuaries. We also cannot prevent and 100% make sure that our water does not contains those things include medicine. Even chlorine used to killed bacteria.
Besides, Agricultural wastewater often contains soil sediment, as well as potentially harmful materials such as pesticides, fertilizers (which may cause an overgrowth of algae), and animal wastes (which may harbor disease-causing organisms). Unfortunately, the wastewater from agriculture often drains directly into streams, rivers, and lakes. Hence, a great deal of concern has arisen about how we effectively to process the water after water treatment plant and before drink.

Since chlorine is kept use to minimum level, how we can ensure that the water is safe for drink?

This post has been edited by Ch33r: Jun 5 2017, 01:23 PM

Chlorine evaporates at its melting points -101°C ?? This is ridiculously wrong. You completely ignore Chlorine's boiling point at -34°C.
Now that you agreed that Chlorine do EVAPORATES. But you also insist that Chlorine "Precipitate" too when it reacts with Potassium/Magnesium.

Take a look at this UKM Journal about CHLORINATION at Semenyih River Water Treatment Plant.
http://www.ukm.my/mjas/v12_n3/Lim%20Fang%20Yee.pdf

According to you, Chlorine reacts to Potassium and precipitate in the stagnant water. In this case I assume you meant HOCl or HCl reacts with Potassium. So Potassium + dilute hydrochloric acid > potassium chloride + hydrogen gas ie, 2K(s) + 2HCl(aq) > 2KCl(aq) + H2(g). In this chemical equation, I still don't see any insoluble substance that need a stagnant water to PRECIPITATE（沉淀).
Also, Ive tried google search, I don't find any link that suggest the loss of Chlorine via PRECIPITATION in the city water due to reaction with Potassium and Magnesium.
Since you are so determined that Chlorine precipitation actually happened in our JBA water, can you provide a reliable source to substantiate your theory?
Note: So far all the sources you provided did not mention about chlorine precipitation at all.

Many brands are selling HOLLOW FIBRE MEMBRANE eg: they have 2000 - 2500 membranes. While i m selling multipore or some name it as multibore which is a different membrane system.




So, a new membrane system must come with a new casing system to improve the installation design



This post has been edited by zheilwane: Jun 5 2017, 05:56 PM

Does it get clogged up easier?

Sigh

Actually, i no need to keep waste time at here since you keep misunderstanding. From your point of view, i see that u keep mention chlorine only will evaporate or melting but not precipitate. From your statement, Potassium + dilute hydrochloric acid > potassium chloride + hydrogen gas ie, 2K(s) + 2HCl(aq) > 2KCl(aq) + H2(g), but but but did you see my post clearly, i mention chloride (Cl-) is not the same as chlorine (Cl2). Potassium chloride (KCl) is a metal halide salt composed of potassium and chloride but not chlorine which is totally different from chlorine.

Please read it http://furrowpump.com/chlorines-three-form...ater-treatment/

Chlorine in liquid form :
Liquid sodium hypochlorite commonly referred to as chlorine bleach is much less toxic than gaseous chlorine. It can be an easily monitored and administered product for water chlorination systems. But liquid sodium hypochlorite also has several disadvantages . The product breaks down over time , losing efficacy and forming by-products . Here it will loss the effectiveness of chlorine in water but not totally loss all. The breakdown of sodium hypochlorite depends on storage temperature and the presence of impurities in the concentrated product. Product suppliers can inform you of procedures to minimize contaminants. Sodium chlorate is one by-product of sodium hypochlorite. For every one percent of hypochlorite loss, 0.8 percent sodium chlorate is formed. If an 8 percent active hypochlorite solution is used to provide 6 ppm of available chlorine in water, it also will deliver 1.5 ppm sodium chlorate. If it is not properly maintained, sodium hypochlorite can corrode metering pumps and feed lines. Personnel should wear proper protective clothing when handling concentrated sodium hypochlorite, and the product should not be stored near acid products, since the reaction between acid and sodium hypochlorite will produce chlorine gas (toxic gas).

You may do an experiment that take a tong of water from pipe let it overnight few days. The top or surface of the water does not or contain very less chlorine.
And you cannot deny and ignore that chlorine is really pose health risk to high level. And can you prove that any water filter can filter those chlorine that harm to our health? You may go thru experiment to prove it. Since you keep pusing here and there. 无力解释，恕不奉陪

This post has been edited by Ch33r: Jun 5 2017, 06:17 PM

did you see my post clearly, i mention chloride (Cl-) is not the same as chlorine (Cl2).
Yes I did, that's why I tried to correct your mistake with the Journal from UKM. Cl2 hydrolyzes and breakdown to HOCl + HCl in the water. Read the Journal again.


Liquid sodium hypochlorite commonly referred to as chlorine bleach is much less toxic than gaseous chlorine. It can be an easily monitored and administered product for water chlorination systems. But liquid sodium hypochlorite also has several disadvantages . The product breaks down over time , losing efficacy and forming by-products . Here it will loss the effectiveness of chlorine in water but not totally loss all. The breakdown of sodium hypochlorite depends on storage temperature and the presence of impurities in the concentrated product. Product suppliers can inform you of procedures to minimize contaminants. Sodium chlorate is one by-product of sodium hypochlorite. For every one percent of hypochlorite loss, 0.8 percent sodium chlorate is formed. If an 8 percent active hypochlorite solution is used to provide 6 ppm of available chlorine in water, it also will deliver 1.5 ppm sodium chlorate. If it is not properly maintained, sodium hypochlorite can corrode metering pumps and feed lines. Personnel should wear proper protective clothing when handling concentrated sodium hypochlorite, and the product should not be stored near acid products, since the reaction between acid and sodium hypochlorite will produce chlorine gas (toxic gas).

Please don't stray too far off to sodium hypochloride yet. The article you quoted tells nothing about Chlorine precipitation. Up to this stage, you are still unable to prove your theory that Chlorine in stagnant water will react with Potassium or Magnesium and PRECIPITATE. Here, I quote you again:
I have to rebuke unproven theory of yours otherwise the readers will be misled into thinking that the service water is no longer safe and it's full of bacteria and a more sophisticated UV equipped filter is necessary. I quote you again, here:
And here but this time you changed your tone that Chlorine reduced to 50% or lower.
What is your motive ? Your actions in this forum is tantamount to fear mongering and undermined the drinking water quality standard of Malaysia.

Sigh Really pengsan to keep explain to you while you keep pusing here and there...

First, please read the link in my previous post, I need to quote you:

Sodium hypochlorite is chlorine which in liquid form, when it breaks down over time or stagnant, it will losing efficacy and forming by-products which is disadvantages.

And again here I need to said that UV light is just one of the effective way to killed those bacteria and also remove chlorine which harm to our health after water treatment plant before we drink. https://www.quora.com/How-long-does-it-take...-city-tap-water

Since when did you see I mention service water after treatment plant is no longer safe or full of bacteria? It will have certain bacteria even after water treatment plant due to our Malaysia pipe that full of rusted. So there is the use for water filter. Since which post or when did you see that I mention UV filter is a must or necessary? Please state out, if not please don't keep misleading. All the while it just a sharing, choices at last is made by consumer. Please don't keep misunderstand ppl meaning and propose your own theory here.


I really don't know what you want to mention. No idea.
As I mention previous that when chlorine precipitate through oxidized or what, chlorine will losing efficacy and forming by-products. It does not means that chlorine totally disappear, just lose efficacy so means example when water full of chlorine can 99% killed bacteria but when it lose efficacy the chlorine may be can function 50% to killed bacteria or lower. Please don't misunderstand again, tired to explain.

Last, what is your motive here also but keep misunderstand or change ppl word to prove yours as I did not mention UV light is a neccessary or must but you change it to? Did you see any selling point that push ppl must purchase eSpring or what? It just a sharing. At last, all is base on consumer choices as I keep mention. No idea why you keep roar at here with no point.

This post has been edited by Ch33r: Jun 6 2017, 01:31 AM

It has better flowrate compared to the normal hollow fibre and does not clogged up easily, hence longer life span

aiks, all these chlorine and PRECIPITATE so confusing, like attending science class now. Cut the story short, just snap a video to prove it, ezier than all these confusing scientific terms.

From what i guess even chlorine does precipitate, when the water comes back, it will push it and mix it back with the water.

All the while, the thread here is just let forumer to share and ask for information, based on information shared they will consider and made their choice to fulfill their requirement. There is no any selling point here or special mention which brand is the most and is the best, at last still choices made by consumers.

Sharing is just to let people know that, other than this way still got other way to disinfect the water. Of course, cannot deny it that said UV light filter does not have it function. All can prove if google it. But at first, it just a sharing, no force and also can't to force.

Different consumer got different requirements and choices, so it just one of the choices and share it. Don't know why got people keep wan to pull the topic in deep like that is a hard selling or what. Did any mention in here said that which brand or UV filter is a "must " or "necessary "? There is not.

This post has been edited by Ch33r: Jun 6 2017, 11:30 AM

Sis,

Judging from your posts, I saw conflicting statements and it leads me to believe that you may not have full understanding of your own logic.
Precipitation = 沉淀 or Mendakan in Bahasa.
Meaning of Precipitation from Google: cause (a substance) to be deposited in solid form from a solution.


Breakdown ≠ Precipitation.

Now, back to your theory that you very much insisted , Chlorine "oxidized" with Potassium or Magnesium or others and they precipitate.
When Chlorine "oxidized" with Potassium (just take Potassium as example), what is the name of the "oxidized" compound and is it soluble or insoluble ?

You seriously need more convincing explanation to prove your theory is not a deceit.
Up to now, none of the sources you provided explain Chlorine "oxidized" with Potassium or Magnesium or others and they precipitate.

And now the latest logic from you, UV remove Chlorine Such nonsense. Do you really want to go such low just to promote the UV equipped water filter you were selling?


I have no problem with eSpring, you can share informations about eSpring, Zheilwane can share informations about aquaphor. No problem at all, but you can't post unsubstantiated and fabricated informations to deceive the forum. One or two ignorant ones is excusable but I don't think you are one. It's quite apparent that you are fear mongering with personal agenda and undermining the drinking water quality standard of Malaysia.

Let me recap all your deceiving and misleading posts in the forum:
1) You told the forum Culligan IC-EZ-4 is a RO filter. Which is obviously not.
2) You conveniently ignored the proper hospital clinical waste treatment management and told the forum that hospital clinical waste are being thrown and poured into river. ( This is a very serious allegation)
3) You conveniently ignored sewage treatment plant and told the forum that household medicine waste poured or washed into the river when it rains
4) You told the forum that treated city water contains "little medicine".
5) You told the forum that UV remove Chlorine.
6) You told the forum that "Chlorine precipitate", water pipe full of bacteria, you recommend the use of UV filter. I quote you here:
Sis, don't spread lies in the public forum. Not worth it.

Hello Bro, really really pengsan keep explain to you as so stubborn, what is the point.

Let me clear you.

First, Did you see i mention Culligan IC-EZ-4 is a RO filter? I just said that culligan as not all culligan is not RO water right.


Second, I have not ignored the proper way that hospital clinical waste treatment management. But you cannot 100% confirm that there is no even 1% that medicine may expose to rivers.


Third, I had already mention many many times there even have water treatment plant at there, but is it the water treatment plant just beside your house? Or you live in a special place that water straight flow from water treatment plant to your pipe without a long way? I m interested to know.
As water from water treatment plant flow to our household pipe, you cannot ensure that they is no bacteria in the long way before go to household, even bacteria also inhabit inside the pipe and tanks. Please use your common sense.


Can you ensure that our country household does not even throw their extra medicine or expired medicine into their household dustbin and thus bring to the rubbish collection place and break down into the soil?? Can you 100% ensure that the soil that contain certain medicine wont flow to river follow by rain? Please think it.


As you need to know sodium hypochlorite is the liquid form of chlorine tat use to disinfect water. As it also contain it disadvantages as it will breaks down over time, losing it efficacy and forming by-products . Those by-products are harm to our health and may pose health risk in high level so now it also kept to use in minimum levels . When chlorine is injected into waters with naturally occurring humic acids, fulvic acids or other naturally occurring material, trihalomethane (THM) compounds are formed. Approximately 90% of the total THMs formed are chloroform, with the remaining 10% consisting of bromodichloromethane (CHCl2Br), dibromochloromethane (CHBr2Cl) and bromoform (CHBr3). Since THMs have been shown to be cancer-causing to laboratory animals in relatively low concentrations, there is concern about limiting their prevalence.
Please read clearly and do not deny it, http://furrowpump.com/chlorines-three-form...ater-treatment/
https://www.nsf.org/newsroom_pdf/cons_dw_ch...oramines_fs.pdf (Prove by NSF)
Here is you need that prove for UV remove harmful chlorine. An increasingly popular dechlorination technology, is ultraviolet (UV) treatment. High intensity, broad-spectrum UV systems (also known as medium pressure UV) reduce both free chlorine and combined chlorine compounds (chloramines) into easily removed by-products. Read those how UV dechlorination process work.
https://www.wwdmag.com/chlorinechloramines/...-dechlorination
https://www.aquafineuv.com/Chlorines-Chloramines-Destruction
http://www.spartanwatertreatment.com/artic...hlorination.pdf
So so many prove that can found in google, before said please google it. What else do you need ? Ishhhhh....

From here, all is just sharing and got it proven at all. No one like you stubborn until keep ignore those info or based on your own theory to say and keep misleading it, as there is no keep selling as i always mention. Consumer will make their decision. There is not a must or necessary , all at the last decision still made by them.

Arghh... Tired to explain those since why so stubborn...gonna stop here......

This post has been edited by Ch33r: Jun 6 2017, 02:09 PM

guys wanna ask for opinion on a home kitchen water filter unit, budget of rm100-200, any recommendations? I have gone through panasonic and amgo products. Not sure which is better

Hi... can anyone recommend me a good external water filter for double storey link? is there anything good for budget below 1000?

Now the denial kicks in !!
1)
We only discussed about Culligan IC-EZ-4. We didn't discuss about other Culligan models in this thread. You came in and quoted one of the posts and told the forum that Culligan is RO. You didn't clarify yourself that you were not referring to IC-EZ-4. You have every intention to mislead the forum.

2)
Yes you did. Initially I thought you were ignorant about it but later I realised that you were intentional. I have to warn you that these statements of yours are tantamount to SLANDER. I quote you:
3)
Look here, you conveniently ignored the water treatment plant in this post. How can untreated river water "flow" to your house water tap directly ? I quote you:
4)
Do you have any statistics and reports to back you allegations?? water pollution at river is supposed to be treated at water treatment plant before last mile distribution to the end users ? You conveniently left out water treatment plant again ? You are tying to paint a very negative picture about JBA water and you overdo it. But that's beside the point, the point here is your allegation that JBA water contains MEDICINE. I warn you again, this is a very serious slander !!! I quote you:
5)
Thanks for enlighten me that UV does indeed remove Chlorine. Sounds like heavy duty and expensive equipment. Does this technology available at consumer's POU lever or just commercial usage ? your eSpring UV powerful enough to remove Chlorine ?

Your theory of Chlorine "oxidized" with Potassium or Magnesium or others and precipitate, still remain unexplained. Until you can back up with a reasonable explanation, I will continue to rebuke your misleading comments.

Another good guide in choosing what suite you best.
http://www.consumerreports.org/cro/water-f...uying-guide.htm

5 things you need to know about water filters
http://www.consumerreports.org/water-filte...-water-filters/

Again, NSF is still the reputable bench-marking tools to know how good is the filters are.

This post has been edited by oyching88: Jun 6 2017, 05:35 PM

Anyone using Filken product?