Just sharing my experience and understanding after doing lots of research online and used many brands of filters before. I have used Doulton Ceramic filter, NESH, Rubine Alklaine, 3M DWS 2500, Aquaphor Eco and Aquaphor DWM 101

1) RO -
I am currently using Aquaphor's RO system (DWM 101) now for 6 months, not selling it yet in malaysia as i wanna fully test the product first. RO system is the cleanest filter in the market as it filters almost everything out including minerals and based on research online, water without minerals will have pH around 6.5 mild acidic and drinking demineralize water is not good for health. DWM 101 has remineralize cartridge to add back minerals and balance back the pH water, hence it is clean and healthy water. Other pros & cons u can ask me when u are in my shop, too much info to type out but most of them u can get it from GOOGLE

2) Alkaline water
Still not 100% proven, some say is good (can cure many diseases) and some say is not. I tested RUBINE alkaline machine as i have eczema problem but didnt improve the condition. Research says that if we drink alkaline water our body will actually automatically produce more acid to neutralize the alkaline, hence no health improvement. However, due to the compact size, most alkaline machine only provide a membrane filter (0.1micron) inside the machine. A 0.1 micron membrane alone is not sufficient in removing most of the impurities in our water even a RO membrane with 0.0001 micron has to be used together with other filters like CARBON BLOCK.

What else you need to know about Aquaphor? Actually if you read through this thread, you can see the past discussions, replies and feeback. However, most forumers find it too much info to read, most of them just drop by my shop

If you think Aquaphor Crystal Eco with filtration 0.1 micron (Espring - 0.2 micron) is still not good enough, u can still opt for Aquaphor DWM 101 (RO System - 0.0001 micron). DWM101 filters of everything including minerals but it has a remineralization cartridge to balance back the mineral and pH level in the water. I haven market it yet in malaysia but used it for about 6 months for testing, so far so good. This system produces the purest and cleanest water but most people in malaysia prefer Crystal Eco as they think Aquaphor DWM 101 is too clean

There is too much info on water filters to read up (RO, Alkaline, Energy water, Oxygen water and etc etc), if you do not have the time, just drop by my shop for me to explain the details.

Since you from Puchong, well from your place to Amway HQ Shop (Jalan 223, Petaling Jaya) are quite near, you can check out the demo unit at there as well, I believe anyone of those that PM you are willing to guide you at there.

So far the products never fail me for the past 5 years, just happen to me 2-3 times that the electronics sensors in the water filter gone haywire, I got it 1-1 exchange for free. In details, is way better they explain to you.