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

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FourZeroFour
post Nov 10 2016, 08:54 PM

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QUOTE(szb @ Nov 9 2016, 04:30 PM)
alkaline water is not a must for me. i'm looking for a water filter that i can drink the water without boiling it. and i like panasonic brand, a salesgirl introduced this product to me as the cheapest panasonic water filter that provide drinkable water...
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QUOTE(zheilwane @ Nov 10 2016, 03:48 AM)
There are still many things not covered by these two standards such as BACTERIA, that is why we cannot solely rely on NSF only but having NSF is a good start.

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For this, you want any decent water filter that is equipped with activated carbon block filter or better yet solid carbon filter with absolute (not nomimal) submicron pores aka less than 1.0 micron pores (absolute 0.5 is good) to be able to filter common bacterias that cause diarrhea. If you want to go DIY route, high quality carbon block filter with this pore size eg Matrikx is hard to be sourced in Malaysia so most likely you gotta import it from US in the end. Or get any of those premium water filter with carbon filter of that micron size.

This post has been edited by FourZeroFour: Nov 15 2016, 11:53 AM
FourZeroFour
post Nov 15 2016, 12:16 PM

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So I just learned that it seems that here in Malaysia, ceramic filters (Doulton for example) are more preferred over and commonly used in place of submicron carbon block in final stage filtering to filter out submicron particles and pathogenic bacteria
FourZeroFour
post Jan 17 2017, 09:19 PM

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QUOTE(msian @ Jan 17 2017, 09:08 PM)
Thanks. What are some of the things to look out for a sand filter. Price range and disparity is huge.

My house is a concrete jungle. Wanna get something economical long run.
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For starter, you want one that doesn't filter out chlorine. So, no carbon layer in the filter.
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
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.
FourZeroFour
post May 31 2017, 09:37 PM

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QUOTE(tyss @ May 31 2017, 06:00 PM)
1 micro filtration will also remove the good minerals which our body needs right? such as the calcium and magnesium.
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Eh not at all. It takes very fine ultra filtration such as in that RO (0.0001? micron) to remove dissolved minerals

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