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.

Activated Carbon Block Filtration

The Activated  Carbon Block  is composed of fine carbon powder that held together and remains static by a binding agent.

It’s very effective in removing Chlorine taste and odor, chemicals, and more contaminants in water.

Also, the Activated Carbon Block is able to reduce contaminants like lead, volatile organic compounds (VOCs), and microscopic cysts in water.

The high porosity powder form resulting in a larger surface area, which allows it to adsorb more contaminants in water and prevent water from channeling.

It also has high resistance against bacterial growth due to the tiny pore size.

How Activated Carbon Block Filter Works

When the water flows through the pores of an activated carbon block, all the impurities with size larger than the size of the pores are mechanically adsorb and accumulate on the activated carbon surface.

At the same time, the positively charged activated carbon attracts all the negatively charged chemicals like Chlorine and get rid of the bad taste and odor.

The Advantages of Activated Carbon Block Filtration

Affordable price and high value (performance-to-cost ratio)

Great contaminants filtration capability

Very effective in removing Chlorine taste and odor

Customizable for different designs and applications

Good water flow rate

Long filter life

Retain essential minerals

Minimal pH level change

Inhibit bacterial growth

Easily to be used in conjunction with other filtration technologies for greater filtration

Doesn’t require a power supply

Green technology

No chemical additives

Pursafet’s activated carbon blocks are made from coconut shell based carbon materials. It delivers an unmactched purity and micro pore volume than other carbon sources, like coal or wood. A higher micro pore volume translates to an increased surface area and porosity for greater adsorption.

Pursafet activated carbon blocks

New Refrigerator Filter Launched

The new compatible SAMSUNG DA29-10105J inline refrigerator water filter has launched.

Material use with coconut shell activated carbon block inside and PP cover shell.

Removes over 99% of potentially harmful contaminants that may be in the water.

Deliver unequaled filtration performance, high chlorine taste, and odor reduction, while leaving the beneficial minerals intact.

Start to enjoy the Purer, Healthier, and Greater tasting filtered drinking water every day.

More details, Please visit below link:


The difference between Compressed Carbon Block and Extruded Carbon Block

Carbon Blocks, are one of the most effective and widely used technologies in the Point Of Use (POU) drinking water treatment industry. Solid carbon blocks, or simply carbon blocks, are employed either as standalone treatment methods or in conjunction with other filtration technologies. While seemingly simple at first glance, there are many factors to evaluate when designing and manufacturing an efficient carbon block water filter.

The Manufacturing Processes:Compressed Carbon Block VS. Extruded Carbon Block

Carbon block is manufactured using one of two processes: extrusion or compression molding.

Extruded carbon blocks are manufactured using a mixture of carbon, binder and other media that is forced through a die to form a continuous block. The block is then trimmed to size.

Compressed carbon blocks are manufactured individually in a mold under great pressure and high heat and then trimmed to size.Compression molding utilizes a more labor intensive manufacturing process with a lower production rate.

However,compression molding also provides a final product with more consistent filtration properties, due somewhat to needing less binder material to manufacture a cohesive carbon block.

Beyond simply requiring less binder, another advantage of compression molding over extrusion is the broader array of binding materials from which to choose.

Due to the greater temperatures and pressures employed in the compression molding process, specially formulated binders that are more porous may be used to prevent the binder from masking the carbon’s inherent porosity. This yields a more efficient use of the material, resulting in superior performance and increased capacity when comparing same sized blocks.

One final difference between the two manufacturing processes is that compression molding of carbon blocks provides more variability in filter shape, which adds greater flexibility to product design. Carbon block filters go beyond the aesthetic improvement of water by reducing particulates, microscopic cysts, lead, volatile organic chemicals (VOCs), and other contaminants.

Pursafet’s Carbon Blocks

All of Pursafet’s carbon blocks are for the compressed type carbon blocks with all the specified advantages. We own a 7000 square meters carbon block manufacturing facility, the carbon block annual production capacity reaches 5 million pieces of both standard and customized size to meet your different requirement.

You may check the following for more details:


Aquatech Amsterdam 2019, Welcome To Visit Pursafet Carbon Block Inc.


Aquatech Amsterdam is the world’s leading water trade show for process, drinking and waste water. Connect with water professionals from over all over the world, in the exciting city of Amsterdam from Nov.5th-Nov.8th, 2019.

Pursafet Carbon Block Inc. strives to offer you personalized service from design to delivery for each individual project, while remaining large enough to get it done from start to finish in simple residential water filtration industry.

As one of the exhibitors, we have prepared a booth, presenting our promising products, offering include the following series:

  • Custom manufactured carbon block filter cartridges
  • Refrigerator water filters
  • Pitcher water filters
  • Coffee machine water filters
  • POU water filter system

We sincerely invite you to visit our booth,Booth NO.03.123. RAI Amsterdam.

Address: Europaplein 22, 1078 GZ Amsterdam, Netherlands. 

We are looking forward to meeting you there.

For any further information, please contact us freely, we will always be glad to help you.

P.S Free Ticket Register Link:


Aquatech Pursafet 2019


Water Pollution & Water Filtration

pure water

Water pollution occurs when unwanted materials enter into water, changes the quality of water and and harmful to environment and human health.

Water is an important natural resource used for drinking and other developmental purposes in our lives.Safe drinking water is necessary for human health all over the world.

According to world health organization (WHO) 80% diseases are water borne. Drinking water in various countries does not meet WHO standards, 3.1% deaths occur due to the unhygienic and poor quality of water.

Usually, there are 3 types of contaminants in our daily drinking water.

1.Physical contaminants: refers to the sediment, rust and impurities such as suspended solids visible in the water.

2.Chemical contaminants: refers to various artificial or naturally occurring chemicals that are dissolved in water, organics,in-organics and heavy metals.

3.Biological contaminants: refers to a biologically active substances that can cause disease to human body in water,the bacteria, viruses and parasites.

Sourcing the clean and safe drinking water becomes more and more important for each of family. Here are some water filtration media that can help to improve the drinking water quality.

·Polypropylene Sediment water filter: Filtering suspended matter, rust and other impurities.

·Activated Carbon water filter: Remove chlorine, odor, taste voc etc.

·Ultra Filtration membrane water filter: Filtering bacteria,virus and organism pollution

·Reverse Osmosis water filter: Remove ions, unwanted molecules and larger particles from drinking water.

·Ion-exchange resin water filter: Softening the water, prevent lime scales.

Pure, Safe and Taste Better. Pursafet offers innovative, cost effective filtration solutions of the highest quality and performance at competitive price for global customers and wholesale distributors in drinking water industry, including Activated carbon block water filters, PP sediment water filters,Refrigerator water filters, Pitcher water filters, Coffee machine water filters and POU water filtration system. Choose Pursafet for pure enjoyment.



Ion Exchange Resin-Pursafet Coffee Machine & Pitcher Water Filters

An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange. It is an insoluble matrix (or support structure) normally in the form of small (0.25–0.5 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate. The beads are typically porous, providing a large surface area on and inside them. The trapping of ions occurs along with the accompanying release of other ions, and thus the process is called ion exchange.Ion-exchange resins are widely used in different separation, purification, and decontamination processes. The most common examples are water softening and water purification.

Types of Resins

Cation-exchange resin

The cation exchange method removes the hardness of water but induces acidity in it, which is further removed in the next stage of treatment of water by passing this acidic water through an anion exchange process.

Formula: R−H acidic Reaction: R−H + M+ = RM + H+.
Anion-exchange resin 

Often these are styrene–divinylbenzene copolymer resins that have quaternary ammonium cations as an integral part of the resin matrix.

Formula: NR4+OH  Reaction: NR4+OH + HCl = NR4+Cl + H2O.

Water Softening

In water softening, ion-exchange resins are used to replace the magnesium and calcium ions found in hard water with sodium ions. When the resin is fresh, it contains sodium ions at its active sites. When in contact with a solution containing magnesium and calcium ions (but a low concentration of sodium ions), the magnesium and calcium ions preferentially migrate out of solution to the active sites on the resin, being replaced in solution by sodium ions.

The resin can be recharged by washing it with a solution containing a high concentration of sodium ions (e.g. it has large amounts of common salt (NaCl) dissolved in it). The calcium and magnesium ions migrate from the resin, being replaced by sodium ions from the solution until a new equilibrium is reached. The salt is used to recharge an ion-exchange resin, which itself is used to soften the water.

Pursafet coffee machine and pitcher water filters

Use with Acrylic weakly acidic cation resin(hydrogen type resin and potassium type resin), help to reduce the calcium and magnesium ions and soften the water, prevent the limescale. And the high density net help to filter the sediments and rust, the inside coconut shell activated carbon can remove the Chlorine, Odor and unpleasant taste to improve the water quality and taste.

Visit https://pursafet.en.alibaba.com/ for more details.


The Contamination Expo Ended Thanks For Your Visiting

Pursafet Carbon Block Inc thanks all of customers coming and visiting to our booth at the NEC Birmingham, UK.

We commit to the water filtration industry, strive to serve you with premium quality products and best service.

Contamination Exhibition

Pursafet products line include:

-Customized carbon block manufacturing

-Refrigerator water filters

-Pitcher Jug water filters

-Coffee machine water filters

-POU Water filtration filter system

Just feel free to contact us at any time, our representative will reply within 24 business hours.

Know Better About Faucet Mount Water Filters

Nowadays, it’s no wonder that more people are turning to water filters to protect their health. Here are something about the faucet mount water filters that we’d like to share with you today.

What are the advantages of faucet filters?

  • Convenience–  With a faucet mount filter, you’ve got on demand filtration right at your kitchen faucet. There’s no need to constantly refill containers, and you won’t run out of filtered water.
  • Low Price– These are among the least expensive water filters. Most models retail for under $50. The replacement filters are inexpensive, too.
  • Simple Installation– No tools are required to install a faucet filter. Just take off the faucet aerator and screw the filter on in its place.
  • Easy Maintenance– The only maintenance you’ll have to do is to replace the filter cartridge every few months. And this is a simple task.

How do faucet water filters work?

A faucet mount filter screws onto the end of your faucet in place of the aerator. It has a metal or plastic housing that holds a filter cartridge.

You just turn on the water, and it flows through the filter and out an opening in the filter.

There’s always some type of diverter so you can switch between filtered and unfiltered water. You wouldn’t want to waste filtered water on, say, washing dishes.

Different brands may use different filtration materials and methods, but most have a couple of things in common.

The basic setup has a layer to block dirt and debris and then an activated carbon block that traps contaminants by adsorption as the water flows through.Some models have additional layers to reduce a greater number of contaminants.

faucet water filter

While for Pursafet faucet mount water filter, we use the UNIKTIKA’s activated carbon fiber, which is developed by melting-spinning technology, provides an extremely high adsorption speed compared with powdered or granular activated carbon.

With the Mitsubishi Rayon Ultra-filtration Membrane, it can effectively removes most particles, pyrogens, micro-organisms and colloids above their rated size, providing reliable bacteria and protozoan cyst reduction for safer and cleaner drinking water without incorporating chemicals into the media or adding chemicals to the filtered water.

Sprayer head design,  directly attaches to standard faucets, easily switches back and forth from tap water to filtered drinking water.Save 40% more space-efficient than most units, best for using in kitchen, bathroom and taking to travel.




Coffee Machine Filter – Start Your Day With A Greater Taste Coffee

Coffee water filter

A delicious cup of coffee makes a great way to start your day. An amazing cup of coffee can be a celebration to the senses, especially if brewed using high quality, roasted, single origin coffee beans. Ask any coffee enthusiast if the type of water in their coffee causes them concern, and the majority of them will agree – Yes, of course it matters to them.

Coffee is mostly made up around 98% of water, obviously the water you use to brew your coffee is going to have a serious impact on the final coffee taste.

Using filtered water is particularly important for coffee making, as the hard water quickly calcifies inside the machine.

Coffee machines with water filters integrated into the system will eliminate sodium, organic solids and bacteria from your water, reducing the elements that negatively affect aroma and taste, with the advantage of preventing quite so much build-up of scale on your brewing equipment, improves the overall drinking quality of the water.

Pursafet auto coffee machine water filters use with the coconut shell activated carbon and non-sodium ion exchange resin as filtering media, help to reduce most of the chlorine, taste, odor and heavy metals in the water, while offering the improved great tasting water and coffee.