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

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ironcrowz
post Mar 2 2025, 07:27 AM

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Boiling water doesn't increase the concentration of heavy metals/solids in the water....

Constant refilling and reboiling is.... But i suppose only significant enuf if left for a long time

Usually happen to water dispenser with hot water tank, water is constantly being boiled not knowing when the user will use it, when water slowly evaporates, the tank is constantly refilled automatically
Azran1979
post Mar 3 2025, 04:42 PM

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QUOTE(biastee @ Mar 1 2025, 01:37 PM)
Where did I claim that boiling will remove heavy metal? Indeed, boiling does increase the concentration in theory, but the question is how significant is the increase in normal boiling?

Please show me proof that activated carbon filters can remove heavy metal.
*
hello. why waste time and money to boil? if the water already have heavy metals, there is no point to boil. thats my point.
Azran1979
post Mar 3 2025, 04:45 PM

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QUOTE(hestati @ Mar 1 2025, 09:55 PM)
Not significant at all.

Average activated carbon in fact can reduce, but not remove heavy metals. However, there are modified versions for lead, arsenic, chromium, these can usually remove some specific metal.
*
yes but arsenic chromium and lead is very rare in malaysia.

do you have the statistics to show otherwise ?


hestati
post Mar 3 2025, 08:46 PM

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QUOTE(Azran1979 @ Mar 3 2025, 04:45 PM)
yes but arsenic chromium and lead is very rare in malaysia.

do you have the statistics to show otherwise ?
*
The filter is your insurance, doesn't mean that you drink arsenic every day, but in case there is contamination the filter helps. Lead is quite common. Old pipes, old tanks, connectors etc all may contain lead. Less common in new pipes, but you never know how is every element from the water treatment plant to your home
ItsJustheOne
post Mar 4 2025, 11:25 PM

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Hi, new to all this. So for water filter, in my current house where I've lived with my parents since small, there is only a BacFree water filter at kitchen that we use it to fill up the pot of kettle and then proceed to boiling the water on the stove (for drinking purposes).

Is most of the discussion here about the outdoor water filter that I see some houses have as well? I've lived 20+ years of my life without this. Is this necessary? Thinking of whether need to install or not. My wife does have some skin allergy issue though. Wonder if this would help
hestati
post Mar 5 2025, 03:19 AM

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QUOTE(ItsJustheOne @ Mar 4 2025, 11:25 PM)
Hi, new to all this. So for water filter, in my current house where I've lived with my parents since small, there is only a BacFree water filter at kitchen that we use it to fill up the pot of kettle and then proceed to boiling the water on the stove (for drinking purposes).

Is most of the discussion here about the outdoor water filter that I see some houses have as well? I've lived 20+ years of my life without this. Is this necessary? Thinking of whether need to install or not. My wife does have some skin allergy issue though. Wonder if this would help
*
Whole house water filter will not help any allergies in 99.99% of the cases. IMO it is not necessary, unless your water is real bad, like literal sand coming out (but even then it is probably in the pipes anyway). You may want to install one if you have new pipes and new water tank. This article may help

https://frescatec.com/poe-explanation/
swing123
post Mar 11 2025, 01:10 PM

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QUOTE(sadukarzz @ Feb 16 2025, 12:42 PM)
If space and piping arrangements allows, you can consider getting a sediment / smaller filter, followed by general 5micron filter for your whole house.

Sediment > 3M AP902; for generally occasional backwashing + longer lasting duration between cartridge replacement
*
Hi, wanna ask a noob question. Currently live in landed property with a sendiment filter after the main incoming pipe. Water flow through sendiment filter then go up to the tanks at rooftop due to local council imposing every landed house must install water tank. From the tank it goes through water pressure pump to supply the flow to whole house. Is it possible to install AP902 before or after the pump to improve water quality coming from the tank. If before pump, is it do-able as in enough pressure for water to flow through AP902, or if after the pump, can AP902 sustain the water pressure directly from pump and also if the water pressure after going through AP902 will deteriorate, as i need the water pressure to supply to the rain shower in all the bathrooms.

Would be great to hear all thoughts.
sadukarzz
post Mar 11 2025, 02:12 PM

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QUOTE(swing123 @ Mar 11 2025, 01:10 PM)
Hi, wanna ask a noob question. Currently live in landed property with a sendiment filter after the main incoming pipe. Water flow through sendiment filter then go up to the tanks at rooftop due to local council imposing every landed house must install water tank. From the tank it goes through water pressure pump to supply the flow to whole house. Is it possible to install AP902 before or after the pump to improve water quality coming from the tank. If before pump, is it do-able as in enough pressure for water to flow through AP902, or if after the pump, can AP902 sustain the water pressure directly from pump and also if the water pressure after going through AP902 will deteriorate, as i need the water pressure to supply to the rain shower in all the bathrooms.

Would be great to hear all thoughts.
*
Hi there, no worries, no such thing as noob question. Everyone has to start somewhere.

I believe your question would revolve around:

1. Where to install AP902.
1a. If before pump, enough water flow or not.
1b. If after pump, can it withstand pump pressure or not.

I think its more appropriate to think of it this way. Your reason to install pump is to ensure that water pressure is adequate after the tank (before installing AP902), therefore pump should not
be anywhere near tank (due to electrical wiring or positioning constraints). But you would like to improve water quality.

Hence, I would imagine that your pump is situated near ground level where there is space for installation + electricity.

Based on this assumption, I would install BEFORE the pump. Reason being:

- Gravity would provide enough water flow into AP902, as its 5micron filter (instead of 1micron or lower), so it would still sufficiently filtering impurities without impacting water pressure significantly.

- After the AP902 filters, its beneficial for your water pump as less sediment goes through your pump, improving longevity of your pump.

- Pump will then restore any drop in pressure caused by installing AP902, if any.

________________________________________________

Optimally, I would install BEFORE your water tank, as it also reduces the need to clean the water tank in the long run, but taking into consideration that:

i. It might drop the water pressure beyond adequate level for your tank, it would be a hassle to trial and error to see whether it impacts whether pressure in the first place;

ii. Then you'll also need to clean the tank in order for the concept of cleaner tank to work in the first place, which is then another hassle;

iii. Location and installation of AP902 after sediment filter, before water tank, may not be ideal.

So, in conclusion, so far, based on what I can assume and visualize, best option for you would be to install AFTER water tank, BEFORE water pump.

Hope it helps.
sadukarzz
post Mar 11 2025, 02:25 PM

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QUOTE(ItsJustheOne @ Mar 4 2025, 11:25 PM)
Hi, new to all this. So for water filter, in my current house where I've lived with my parents since small, there is only a BacFree water filter at kitchen that we use it to fill up the pot of kettle and then proceed to boiling the water on the stove (for drinking purposes).

Is most of the discussion here about the outdoor water filter that I see some houses have as well? I've lived 20+ years of my life without this. Is this necessary? Thinking of whether need to install or not. My wife does have some skin allergy issue though. Wonder if this would help
*
Like previous reply, I partially agree. As it really depends on your municipal water quality.

It does help indirectly for your wife's allergy situation, though actual impacts can vary.

Let me give you a few example.

5 micron filters (regardless of any brands of water filter as long as it works as it should) is IMPORTANT in states like Sabah / Kelantan. Reason being is that municipal water quality is relatively low compared to other states with more developed water infrastructure. Sabah for example, experiences frequent episodes whereby water cuts occur during heavy rain due to poor water quality at the intake valves hence treatment plants operate in lower capacity. After restoration, most of the time, the initial flow of water is significantly more murky compared to general water quality.

So, even though you may have improved drinking water quality, but what about the water you use to wash your dishes? Bearing in mind that most drinking water filters are not necessarily nearby sink / made for general use. You would still possibly consume any impurities or allergens that could potentially cause allergies.

Now, let's move slightly further out. What about your laundries? You may not be consuming any laundries, but the fabrics is in direct contact with your skin, some up to more than 8 hours at a time. Let alone those that in contact with more sensitive parts of your body. Impurities that is in your fabric contents, may be caught in your fabrics, bringing it into contact with your skin. Indirect but possible causes of allergies.

Therefore POE water filters can be important, but it depends on how good quality is your municipal water source is. If you live in a mid-high end condominiums, most of which does have water filters installed prior to water entering tanks within the premise, then most likely you won't notice significant improvements. But, if you are situated in places that experiences frequent water disruption and poor municipal water quality, chances are you will be better off with a proper one installed.



swing123
post Mar 11 2025, 02:38 PM

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QUOTE(sadukarzz @ Mar 11 2025, 02:12 PM)
Hi there, no worries, no such thing as noob question. Everyone has to start somewhere.

I believe your question would revolve around:

1. Where to install AP902.
1a. If before pump, enough water flow or not.
1b. If after pump, can it withstand pump pressure or not.

I think its more appropriate to think of it this way. Your reason to install pump is to ensure that water pressure is adequate after the tank (before installing AP902), therefore pump should not
be anywhere near tank (due to electrical wiring or positioning constraints). But you would like to improve water quality.

Hence, I would imagine that your pump is situated near ground level where there is space for installation + electricity.

Based on this assumption, I would install BEFORE the pump. Reason being:

- Gravity would provide enough water flow into AP902, as its 5micron filter (instead of 1micron or lower), so it would still sufficiently filtering impurities without impacting water pressure significantly.

- After the AP902 filters, its beneficial for your water pump as less sediment goes through your pump, improving longevity of your pump.

- Pump will then restore any drop in pressure caused by installing AP902, if any.

________________________________________________

Optimally, I would install BEFORE your water tank, as it also reduces the need to clean the water tank in the long run, but taking into consideration that:

i. It might drop the water pressure beyond adequate level for your tank, it would be a hassle to trial and error to see whether it impacts whether pressure in the first place;

ii. Then you'll also need to clean the tank in order for the concept of cleaner tank to work in the first place, which is then another hassle;

iii. Location and installation of AP902 after sediment filter, before water tank, may not be ideal.

So, in conclusion, so far, based on what I can assume and visualize, best option for you would be to install AFTER water tank, BEFORE water pump.

Hope it helps.
*
Thanks so much for the detailed reply.

The pump is actually beside the water tanks. There is a small section up on the roof with concrete floor to house the water tanks and the pump is installed on the floor right beside the tank. So in this scenario, if AP902 is installed right after the tank, without the gravity force, would the water has enough pressure to flow thru the filter before get into pump, or the pump suction would be enough to get the water thru the filter?
sadukarzz
post Mar 11 2025, 03:21 PM

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QUOTE(swing123 @ Mar 11 2025, 02:38 PM)
Thanks so much for the detailed reply.

The pump is actually beside the water tanks. There is a small section up on the roof with concrete floor to house the water tanks and the pump is installed on the floor right beside the tank. So in this scenario, if AP902 is installed right after the tank, without the gravity force, would the water has enough pressure to flow thru the filter before get into pump, or the pump suction would be enough to get the water thru the filter?
*
As long as water is able to flow through the pipes as usual (without pump) then it should suffice.

Enclosed systems like water pipes generally provide sufficient flow.

Do remember when you install any water filters, to have a bypass so when you need to do maintenance it won't directly affect water usage.
Wind82
post Mar 11 2025, 03:38 PM

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Any LG Puricare SA here?

Interested in WD516 or WD518. Can PM me latest offer with trade and free gift if any?

Thank you very much
ironcrowz
post Mar 11 2025, 08:26 PM

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QUOTE(Wind82 @ Mar 11 2025, 03:38 PM)
Any LG Puricare SA here?

Interested in WD516 or WD518. Can PM me latest offer with trade and free gift if any?

Thank you very much
*
https://forum.lowyat.net/topic/5445954

Can visit the LG thread for more info on the promo biggrin.gif
ItsJustheOne
post Mar 11 2025, 09:19 PM

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QUOTE(sadukarzz @ Mar 11 2025, 02:12 PM)
» Click to show Spoiler - click again to hide... «

*
Thanks, this is good info for me as well. Other than AP902, there are other brands that i can choose too right?

QUOTE(sadukarzz @ Mar 11 2025, 02:25 PM)
Like previous reply, I partially agree. As it really depends on your municipal water quality.

It does help indirectly for your wife's allergy situation, though actual impacts can vary.

Let me give you a few example.

5 micron filters (regardless of any brands of water filter as long as it works as it should) is IMPORTANT in states like Sabah / Kelantan. Reason being is that municipal water quality is relatively low compared to other states with more developed water infrastructure. Sabah for example, experiences frequent episodes whereby water cuts occur during heavy rain due to poor water quality at the intake valves hence treatment plants operate in lower capacity. After restoration, most of the time, the initial flow of water is significantly more murky compared to general water quality.

So, even though you may have improved drinking water quality, but what about the water you use to wash your dishes? Bearing in mind that most drinking water filters are not necessarily nearby sink / made for general use. You would still possibly consume any impurities or allergens that could potentially cause allergies.

Now, let's move slightly further out. What about your laundries? You may not be consuming any laundries, but the fabrics is in direct contact with your skin, some up to more than 8 hours at a time. Let alone those that in contact with more sensitive parts of your body. Impurities that is in your fabric contents, may be caught in your fabrics, bringing it into contact with your skin. Indirect but possible causes of allergies.

Therefore POE water filters can be important, but it depends on how good quality is your municipal water source is. If you live in a mid-high end condominiums, most of which does have water filters installed prior to water entering tanks within the premise, then most likely you won't notice significant improvements. But, if you are situated in places that experiences frequent water disruption and poor municipal water quality, chances are you will be better off with a proper one installed.
*
Okay this is good to know too. Btw usually are Selangor water source considered good?

sadukarzz
post Mar 12 2025, 10:11 AM

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QUOTE(ItsJustheOne @ Mar 11 2025, 09:19 PM)
Thanks, this is good info for me as well. Other than AP902, there are other brands that i can choose too right?
Okay this is good to know too. Btw usually are Selangor water source considered good?
*
Yes of course, as long as the product fits your bill after you do your research. I do not have extensive knowledge about many other brands of products so maybe other sifus here can advice you better when it comes to other brands / specific products.

For me I am somewhat a water enthusiast but not loyal to any particular brands. I like to do research about water quality / water sources / water management / wastewater management / municipal water distribution and design etc. Just so happens that 3M is the most straightforward and fits my criteria well that I don't have to subscribe and I can consider their qualities are generally reliable and consistent compared to other brands.

Whereas for Water quality in Selangor I would consider it as acceptable in Malaysian standards. Similarly applicable for Klang valley water sources, along with Perak, Johor, Negeri Sembilan, Melaka, Penang and parts of Pahang and Sarawak. Not sure about Perlis & Kedah, but for Sabah, Kelantan and Terengganu, its below standards for me.
ItsJustheOne
post Mar 17 2025, 11:37 PM

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QUOTE(sadukarzz @ Mar 12 2025, 10:11 AM)
Yes of course, as long as the product fits your bill after you do your research. I do not have extensive knowledge about many other brands of products so maybe other sifus here can advice you better when it comes to other brands / specific products.

For me I am somewhat a water enthusiast but not loyal to any particular brands. I like to do research about water quality / water sources / water management / wastewater management / municipal water distribution and design etc. Just so happens that 3M is the most straightforward and fits my criteria well that I don't have to subscribe and I can consider their qualities are generally reliable and consistent compared to other brands.

Whereas for Water quality in Selangor I would consider it as acceptable in Malaysian standards. Similarly applicable for Klang valley water sources, along with Perak, Johor, Negeri Sembilan, Melaka, Penang and parts of Pahang and Sarawak. Not sure about Perlis & Kedah, but for Sabah, Kelantan and Terengganu, its below standards for me.
*
How much would did it cost to install your 3M? Any pics to share ?
sadukarzz
post Mar 18 2025, 10:19 AM

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QUOTE(ItsJustheOne @ Mar 17 2025, 11:37 PM)
How much would did it cost to install your 3M? Any pics to share ?
*
PM'ed on the pictures for setup in one of family house. Only took outdoor POE pics, indoor did not.

For overall setup. Duration used so far - 3.x years

OVERALL SETUP:

Location: Border Sabah Sarawak

Municipal water quality overall: Below average

Water pressure: Fluctuates

Setup: 3M AP902 > 3M AP902 > water storage tanks > "1 micron" cheapo filter bought from shopee > pump > 3M DWS2500T-CN
*cheapo few RM 1micron filter is only meant for elderly to observe water quality easily without need to do much digging, if the white filter turns dark brownish then elderly will inform me and I will arrange for AP902 to be changed*

Maintenance

So far only replaced: Front 3M AP902 x1, RM55x; the rest was working fine and no clogs or anything significant yet. But the front AP902 has been doing bulk of the job, filter medium in pretty bad shape when I changed it after 2 years. Used tube camera to go into the cartridge to view every now and then. The rest is fine, did not need replacement.

2x 3M AP902 (mount and cartridge) - RM206x.xx (bought sometime back during shopee sales, got huge discount voucher)
- 5 micron, for POE purposes

1x 3M DWS2500T-CN - RM180x.xx (also bought during shopee sales, again, huge discount vouchers)
- 3 micron & 0.2 micron, for direct drinking purposes when needed

So far total ownership cost over 3.x years:

RM206x.xx + RM180x.xx + RM55x + RM150 installation fee = ~RM456x.00 (indoor, outdoor and piping, inclusive of labor) :: Gave extra RM50 tips to installer to help me clean the storage tanks and flush pipes where possible before installation.

Review:

Pros
- Little to no maintenance required (only swapped out cartridge when due once)
- For the setup and the water quality I am getting, its considered cheap per litre of water filtered
- Confident enough to drink direct from DWS2500T-CN, but would still boil water when it rains or during rainy seasons as water becomes murky at the river intake
- Pump is somewhat protected with less sediments

Cons
- No UV filter, hence when it rains still need to boil water to be 100% safe from viruses, so if municipal water is not chlorine treated then hailat
- No instant hot water, but non issue as elderly have constant boiler from older time anyways
- No cold water, non issue as well, elderly likes to keep water in fridge in their glass bottle, I also rarely drink cold water

My verdict -
1. I went overkill for 2x 3M AP902, but personally I like to have a fail safe (2nd AP902) at POE
2. If you want to be sure about drinking direct, I would recommend to survey for UF/UV filtration water filters
3. Try not to get RO water filters if possible especially if your drinking water comes primarily from home. Reason being, although in my opinion this is rare occurrence, you will be drinking water that lacks essential minerals for your body in the long run
hestati
post Mar 19 2025, 09:08 AM

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As for the minerals in the water, it is such an insignificant source of minerals that it shouldn't even be considered.

In fact, if Sabah Sarawak water is so bad compared to West Malaysia, I would go with RO. At some point it is definitely worth the switch, just gotta get used to very specific taste.
ironcrowz
post Mar 19 2025, 06:19 PM

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QUOTE(hestati @ Mar 19 2025, 09:08 AM)
As for the minerals in the water, it is such an insignificant source of minerals that it shouldn't even be considered.

In fact, if Sabah Sarawak water is so bad compared to West Malaysia, I would go with RO. At some point it is definitely worth the switch, just gotta get used to very specific taste.
*
I'd say other filters still works, just replace the carbon filter more often will do
hestati
post Mar 19 2025, 08:43 PM

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QUOTE(ironcrowz @ Mar 19 2025, 06:19 PM)
I'd say other filters still works, just replace the carbon filter more often will do
*
I don't know to be honest. If they really have issues with say arsenic, chromium, lead or something like that or is it just dirt like sediment. If it is more like sediment issue, then yes, just changing more often probably

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