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 [Home Appliances] Water Filter/Purifier Thread V2, Drinking Water Treatment System

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zheilwane
post May 30 2017, 09:58 PM

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QUOTE(yiyi87 @ May 30 2017, 01:35 PM)
what made you think they are not honest?

found from their website
Products are designed in Sweden, but R&D has been localised to ensure that products are able to filter Malaysian water supply efficiently and effectively, as well as meeting global health standards.

the indoor unit comes with backflush function, from main tap. I guess that's the reason why don't have to replace as fast
anyway I have not tested the product itself, waiting place to be renovated, cant comment much, just getting some views..
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Many companies in Malaysia are doing the same thing, Eg Rubine - Italy Design (local company, product OEM in China). For me, how i check when i purchase something, i google. If i cant find the company info in other countries, i would assume it is local brand OEM from other countries usually china. For example, If you google Electrolux, it is really originate from Sweden. If u google blondal, cant find anything. Hence, i suspect why they say designed in Sweden bcoz is to be consistent with their claim they are related to Electrolux which is from Sweden.

NOTE : I do not have any proof on this, just my assumption from doing online research. I may not be right but confirm blondal is not from electrolux as i emailed electrolux group to verify.


Regarding backflush function, backflush only prevents the cartridge from clogging, it could not pro-long the effective high performance of the filter media til 3 - 4 years.

"Activated carbon works via a process called adsorption, whereby pollutant molecules in the fluid to be treated are trapped inside the pore structure of the carbon substrate"
https://en.wikipedia.org/wiki/Carbon_filtering

As chemicals such as Cholorine, VOC, THM and etc are trapped in the pore structure (like bonded to the carbon), you cant backwash it out. Backwash only clear off the sediments that are collected at the outer surface of the filter.

Another example, tested on Aquaphor Water filter
Attached Image

When the filter is brand new, it is able to filter 97-99% but the more we use the effectiveness drop to 93-94%. Hence, most brands recommend to change once a year, it doenst mean after 1 year the water is bad and not drinkable, it is recommended to change because the effectiveness will drop such as from 99% to 90%, it is still good but for better water quality, best to change. If the passing mark is just 50%, then i bliv many filters can last 3 - 4 years without replacing as well. Why we invest and do so much research in getting a water filter? becoz we wanna drink high quality filtered water but if we dont change the cartridge regularly to maintain the high filtration quality, what is the point in getting a good filter in the first place?

This post has been edited by zheilwane: May 30 2017, 10:12 PM
FourZeroFour
post May 30 2017, 11:06 PM

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QUOTE(aeiou228 @ May 29 2017, 04:56 PM)
Since you are providing Q&A, I think you are the better person to ask. To what extend the microbes present at point Z and it warrants a UV filter ? Do you have a reliable figure to establish that claim ? From my Chlorine test at kitchen tap, Chlorine is still present at point Z. So how many % gems, bacteria and what not survive from Chlorine disinfection?

Don't get me wrong, this is genuine question. I fully acknowledge the effectiveness of UV killing the microbes and I actually shared a link of an external UV filter here which is from my purchase wishlist. The question is to how serious is the contamination at point Z perpetuated by seller of UV filter? Any reliable source?

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Effect of Chlorination on Inactivating Selected Pathogen
https://www.cdc.gov/safewater/effectiveness...-pathogens.html
zheilwane
post May 31 2017, 12:15 AM

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QUOTE(FourZeroFour @ May 30 2017, 11:06 PM)
Effect of Chlorination on Inactivating Selected Pathogen
https://www.cdc.gov/safewater/effectiveness...-pathogens.html
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As per link given, Chlorine is able to inactivate most bacteria, viruses, and protozoa. However, some has higher tolerance against chlorine, just need more chlorine and more time to disinfect except for

"Toxoplasma and Cryptosporidium oocysts are highly resistant to chlorine disinfection. Chlorine alone should not be expected to inactivate these pathogens in drinking water. Filtering water supplies with a 1 micron absolute filter is recommended to physically remove the oocysts before chlorination if these pathogens are of concern"

Most of the (Inactivation %) shown in the table even for those high tolerance against chlorine are 99%, meaning chlorine is able to kill most of the bacteria, viruses and protozoa. Btw, Syabas didnt just add chlorine alone to disinfect the water, there are many other chemicals added, hence the main concern in water filtration is the chemicals and not the bacteria smile.gif
oyching88
post May 31 2017, 01:04 AM

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Chlorine itself is effective against bacteria, protozoa, virus and etc, but are limited to dosage, exposure, pH, temperature & time of exposure. There's still cysts/cynobacteria that highly resistant to chlorine & other chemicals.

UV effectiveness also depends on the exposure time & power, that's why the ANSI standard 55 are used to rate UV filters effectiveness against virus & bacteria. Standard p477 for reducing microcytins.user posted image

https://www.cdc.gov/healthywater/drinking/t..._treatment.html

http://www.who.int/water_sanitation_health...cies/fs2_17.pdf

Treated water from the treatment plants to your home maybe a very long distance and there is potential 2nd contamination occurs along. Have you seen water pipe broken at the middle of road? Do they disinfect the water flowing through the replacement or repaired pipes? How about those never been replaced century old pipes that leaking all the time?

This post has been edited by oyching88: May 31 2017, 01:17 AM
aeiou228
post May 31 2017, 01:10 AM

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QUOTE(FourZeroFour @ May 30 2017, 11:06 PM)
Effect of Chlorination on Inactivating Selected Pathogen
https://www.cdc.gov/safewater/effectiveness...-pathogens.html
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Thank you for the link. I don't have the degree in water safety to understand the entire report but Im sure can understand under the % inactivation column, all 21 pathogens tested were 99.99% inactivated except only one Yersinia enterocolitica 82%-92%.

Well well well ! The attempt to mislead the forum by oyching88 that Chlorine is inefficient to disinfect the water is busted. whistling.gif
Calling blondal salesperson dishonest konon, such hypocrite doh.gif

As the matter of fact, I have no problem with eSpring as a water filter except its steep pricing but I do have problem with oyching88's conduct in this forum as he would try to discredit competitor's brands as if other brands are inferior and try to deceive the forum with incorrect info to the advantage of the product that he represented.





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Attached Image
oyching88
post May 31 2017, 01:22 AM

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QUOTE(aeiou228 @ May 31 2017, 01:10 AM)
Thank you for the link. I don't have the degree in water safety to understand the entire report but Im sure can understand under the % inactivation column, all 21 pathogens tested were 99.99% inactivated except only one Yersinia enterocolitica 82%-92%.

Well well well ! The attempt to mislead the forum by oyching88 that Chlorine is inefficient to disinfect the water is busted. whistling.gif
Calling blondal salesperson dishonest konon, such hypocrite  doh.gif

As the matter of fact, I have no problem with eSpring as a water filter except its steep pricing but I do have problem with oyching88's conduct in this forum as he would try to discredit competitor's brands as if other brands are inferior and try to deceive the forum with incorrect info to the advantage of the product that he represented.
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Read clearly on what i stated, i do not condemn any brands without proof, as i stated in my previous post, there are many filtration technology available which some are good and some are just verbal claims without facts. You feel threaten by the facts that i get from the links provided? I thought you were not a seller? Did any of my post said AQUAPHOR or 3M or xxx brand sucks????? None of my post are brands related. Relax la bro...

One of the forumer suspect blondal not belongs to ELECTROLUX, hence i recommended forumers to direct contact the main distributor to get the correct details.

My main point is UV is also one of the effectiveness way to disinfect bacteria/virus & cysts which stated in those link i relate to. Read it, if you feel my post misconduct, feel free to report it biggrin.gif

Some products might be cheaper but it doesn't mean that those more expensive are not worth at all. If you feel the price is unfair, just report to consumer's affair for high profit scam.
Why this suddenly becomes brands war? This should end my reply to your post, it is pointless to start flaming here.

This post has been edited by oyching88: May 31 2017, 01:51 AM
aeiou228
post May 31 2017, 01:52 AM

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QUOTE(oyching88 @ May 31 2017, 01:04 AM)
Chlorine itself is effective against bacteria, protozoa, virus and etc, but are limited to dosage, exposure, pH, temperature & time of exposure. There's still cysts/cynobacteria that highly resistant to chlorine & other chemicals.

UV effectiveness also depends on the exposure time & power, that's why the ANSI standard 55 are used to rate UV filters effectiveness against virus & bacteria. Standard p477 for reducing microcytins.user posted image

https://www.cdc.gov/healthywater/drinking/t..._treatment.html

http://www.who.int/water_sanitation_health...cies/fs2_17.pdf

Treated water from the treatment plants to your home maybe a very long distance and there is potential 2nd contamination occurs along. Have you seen water pipe broken at the middle of road? Do they disinfect the water flowing through the replacement or repaired pipes? How about those never been replaced century old pipes that leaking all the time?
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You are still trying to incite fear that a filtered JBA water is not safe to drink without UV ?
Do you have any reliable reports to prove that that those who drink filtered water without UV will get sick by the so called cysts/Cynobacteria ?
Do you have any official Malaysian report to prove that after Chlorine disinfection, cysts/cynobacteria still present in our JBA water ? If you don't have facts to back you up, please don't spread lies in the forum.
westlife
post May 31 2017, 07:19 AM

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3M one is good for both indoor and outdoor. No backwash required. Hassle free.
FourZeroFour
post May 31 2017, 02:10 PM

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QUOTE(zheilwane @ May 31 2017, 12:15 AM)
As per link given, Chlorine is able to inactivate most bacteria, viruses, and protozoa. However, some has higher tolerance against chlorine, just need more chlorine and more time to disinfect except for

"Toxoplasma and Cryptosporidium oocysts are highly resistant to chlorine disinfection. Chlorine alone should not be expected to inactivate these pathogens in drinking water. Filtering water supplies with a 1 micron absolute filter is recommended to physically remove the oocysts before chlorination if these pathogens are of concern"

Most of the (Inactivation %) shown in the table even for those high tolerance against chlorine are 99%, meaning chlorine is able to kill most of the bacteria, viruses and protozoa. Btw, Syabas didnt just add chlorine alone to disinfect the water, there are many other chemicals added, hence the main concern in water filtration is the chemicals and not the bacteria smile.gif
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Yep. Also, if you guys overlooked, the concentration of chlorine (mg/L) used in the test for Toxoplasma and Cryptosporidium which are common cause of diaerra is respectively 100 and 80. Even with such highly toxic concentration it takes pretty long to deactivate them due to them being highly resistant to chlorine. For the record, the concentration of chlorination used by Syabas is in the range of 0.2 to 5.0 mg/L, in line with the standard set by Ministry of Health.


https://www.syabas.com.my/consumer/frequent...estions-faqs#q5
http://kmam.moh.gov.my/public-user/drinkin...y-standard.html


QUOTE(aeiou228 @ May 31 2017, 01:52 AM)
You are still trying to incite fear that a filtered JBA water is not safe to drink without UV ?
Do you have any reliable reports to prove that that those who drink filtered water without UV will get sick by the so called cysts/Cynobacteria ?
Do you have any official Malaysian report to prove that after Chlorine disinfection, cysts/cynobacteria still present in our JBA water ? If you don't have facts to back you up,  please don't spread lies in the forum.
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UV disinfection is one the (quick) ways to kill off bacteria's in drinking water. Other way is submicron filtration with absolute-sized pore filter media (as oppose to nominal). Or boiling, if you fancy slow way.
zheilwane
post May 31 2017, 02:35 PM

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QUOTE(FourZeroFour @ May 31 2017, 02:10 PM)
Yep. Also, if you guys overlooked, the concentration of chlorine (mg/L) used in the test for Toxoplasma and Cryptosporidium which are common cause of diaerra is respectively 100 and 80. Even with such highly toxic concentration it takes pretty long to deactivate them due to them being highly resistant to chlorine. For the record, the concentration of chlorination used by Syabas is in the range of 0.2 to 5.0 mg/L, in line with the standard set by Ministry of Health.
https://www.syabas.com.my/consumer/frequent...estions-faqs#q5
http://kmam.moh.gov.my/public-user/drinkin...y-standard.html
UV disinfection is one the (quick) ways to kill off bacteria's in drinking water. Other way is submicron filtration with absolute-sized pore filter media (as oppose to nominal). Or boiling, if you fancy slow way.
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Very informative with links provided as supporting, this is very good bro smile.gif
So, with the two websites provided by FourZeroFour, our syabas water could remove all of the protozoa, virus and bacteria as per the cdc.gov link except for Toxoplasma and Cryptosporidium. As per the cdc.gov website, we could filter off Toxoplasma and Cryptosporidium with absolute 1 micron filtration . Easily close 1 eye, many filters in the market are below 1 micron smile.gif

This post has been edited by zheilwane: May 31 2017, 02:39 PM
aeiou228
post May 31 2017, 03:15 PM

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QUOTE(FourZeroFour @ May 31 2017, 02:10 PM)
UV disinfection is one the (quick) ways to kill off bacteria's in drinking water. Other way is submicron filtration with absolute-sized pore filter media (as oppose to nominal). Or boiling, if you fancy slow way.
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Agree with you that UV, boiling, submicron filtration are ways to eliminate the bacteria.
Oftentimes, unethical sales people who would promote their product by way of exaggerating safety issue or fear mongering without any documentary proof.

Ch33r
post May 31 2017, 04:36 PM

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QUOTE(aeiou228 @ May 31 2017, 03:15 PM)
Agree with you that UV, boiling, submicron filtration are ways to eliminate the bacteria. 
Oftentimes, unethical sales people who would promote their product by way of exaggerating safety issue or fear mongering without any documentary proof.
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All these ways can killed or filter medicine also ? Since our water inside also contains medicine.

This post has been edited by Ch33r: May 31 2017, 04:37 PM
aeiou228
post May 31 2017, 04:45 PM

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QUOTE(Ch33r @ May 31 2017, 04:36 PM)
All these ways can killed or filter medicine also ? Since our water inside also contains medicine.
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Medicine in the water? Not that I aware of. Where did you get the info that water contains medicine ? What kind of medicine ?
Ch33r
post May 31 2017, 05:13 PM

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QUOTE(aeiou228 @ May 31 2017, 04:45 PM)
Medicine in the water? Not that I aware of. Where did you get the info that water contains medicine ? What kind of medicine ?
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Like some of medicines (hospital use or people use) that pour into the river or sea? There got the chance that medicine will contains inside water.
aeiou228
post May 31 2017, 05:45 PM

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QUOTE(Ch33r @ May 31 2017, 05:13 PM)
Like some of medicines (hospital use or people use) that pour into the river or sea? There got the chance that medicine will contains inside water.
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According to newspaper report, there were 16 river contaminations in Selangor, Pahang and NS last year. Mainly were odour pollution, high level of ammonia and manganese, palm oil spill. No medicine contamination was reported. Did you come across any hospital waste disposal contractor dumping hospital wastes into the river or mere hearsay?
Ch33r
post May 31 2017, 05:51 PM

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QUOTE(aeiou228 @ May 31 2017, 05:45 PM)
According to newspaper report, there were 16 river contaminations in Selangor, Pahang and NS last year. Mainly were odour pollution, high level of ammonia and manganese, palm oil spill. No medicine contamination was reported. Did you come across any hospital waste disposal contractor dumping hospital wastes into the river or mere hearsay?
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So means if got household taking medicine, it also got chance that the extra medicine which already expired or what pour into the river. Cannot 100% say no right.
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post May 31 2017, 06:00 PM

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QUOTE(zheilwane @ May 31 2017, 02:35 PM)
Very informative with links provided as supporting, this is very good bro smile.gif
So, with the two websites provided by FourZeroFour, our syabas water could remove all of the protozoa, virus and bacteria as per the cdc.gov link except for Toxoplasma and Cryptosporidium. As per the cdc.gov website, we could filter off Toxoplasma and Cryptosporidium with absolute 1 micron filtration . Easily close 1 eye, many filters in the market are below 1 micron smile.gif
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1 micro filtration will also remove the good minerals which our body needs right? such as the calcium and magnesium.
aeiou228
post May 31 2017, 06:02 PM

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QUOTE(Ch33r @ May 31 2017, 05:51 PM)
So means if got household taking medicine, it also got chance that the extra medicine which already expired or what pour into the river. Cannot 100% say no right.
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Why your house sewerage system ended in the river ? My area in Selangor/KL, all sewerage system has to be ended in the water treatment plants. Im not sure about your area.
Ch33r
post May 31 2017, 06:11 PM

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QUOTE(aeiou228 @ May 31 2017, 06:02 PM)
Why your house sewerage system ended in the river ? My area in Selangor/KL, all sewerage system has to be ended in the water treatment plants. Im not sure about your area.
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Means that the water flow into our household also contain medicine since the water in the river already contains medicines. Since chlorine only inactivate most bacteria, viruses, and protozoa.
aeiou228
post May 31 2017, 08:06 PM

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QUOTE(Ch33r @ May 31 2017, 06:11 PM)
Means that the water flow into our household also contain medicine since the water in the river already contains medicines. Since chlorine only inactivate most bacteria, viruses, and protozoa.
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Is that a confirmation that your house sewerage system ended in the river ? If that is so, your most imperative concern is the river contamination in your area. You must immediately lodge a complain to your local authority so that actions can be taken to prevent the river contamination. As to your concern about medicine in the water, so far in my area Selangor/KL, no such case reported because before river water reach the household service line, it has to be treated thru a water treatment plant. So ya, pretty safe.
Judging from your post, untreated river water seems to flow straight to your house service line without going thru a water treatment plant. Are your sure? Which area you at?

This post has been edited by aeiou228: May 31 2017, 08:08 PM

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