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About The Water Filtration At Home

1. What’s the ideal pH level of tap water?

The Ideal pH level of tap water is 7.5. The pH level between 7.0 and 8.0 is preferable because if the tap water pH level is below 7.0, the acidity may cause corrosion to pipes, appliances, and fixtures. If the pH level is above 8.0, the alkalinity may produce minerals deposits inside the pipes and on floors.

2. What are the common type of water filtration system in the market?

The common type of water filtration system in the market are sediment filter, activated carbon block filter, granular activated carbon filter, reverse osmosis filter, distillation, ion-exchange, ultraviolet disinfection, ultra filtration, activated alumina filtration, and ionization.

3. How long you need to replace your water filter cartridge?

It depends on the water filter capacity and family usage.

For most standard capacity activated carbon filter, it should be replaced at least once every year.

Reverse Osmosis membrane filter can last up to 3 years due to its self-wash mechanism.

Sediment filter like Polypropylene (PP) should be replaced more frequently, typically from 3 to 12 months time depending on usage.

Most of the time, the filter will come with a certain capacity in gallons, so you can find out your average monthly water usage and calculate the replacement period accordingly.

4. How to know whether the filter cartridge is clogged?

You can measure the pressure drop by installing pressure gauges before and after the filter.

When the filter cartridge is new, run the water filtration system and write down the difference of pressure reading (let’s say 2 psi). Then measure again after a few months, you’ll notice the pressure difference is increasing, let’s say to 7 psi.

When the difference of 2 pressure gauges reading reach about 15, it’s time to change the filter cartridge (or wash if it’s washable).

5. How to choose the right filter that can remove the contaminants in my water source?

The best way is to have your water tested on lab to identify the contaminants, and then pick the right water filters to remove those contaminants.

6. Can a TDS meter really measure the Total Dissolved Solids in the water?

The answer is no.

We have seen many people used a TDS meter or TDS pen to measure Total Dissolved Solids in their water without knowing what is really being measured.

In short, what TDS meter measured is the electrical conductivity (EC) in water (pure H2O has virtually zero EC), and then times the EC value by a factor between 0.5 to 1 (set by the manufacturer) to estimates the TDS (which is not the real Total Dissolved Solids in water).

For instances, dissolved organic solids (eg: sugar) and microscopic solid particles (eg: colloids) are not measurable by the TDS meter because they do not affect the water conductivity significantly.

The accurate way to measure the actual TDS in water is to evaporate the water and then weighing the dissolved residue left.

7. Is the water filter brand important?

Not absolutely but is recommended if it’s a highly reputable brand in term of product safety, quality control and customer support.

The important parts of considering a water filter are about the material of the components, where the components are manufactured, and the functionality of the filter system.

Pursafet carbon block water filters, refrigerator water filters, pitcher water filters, coffee machine water filters and POU water filter system are manufactured with NSF/WQA/FDA certified raw materials, 100% testing before shipping to customers’ s hand. Welcome to send inquiries.

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