A carbon block is a type of water filtration media that is commonly used in water filtration systems. It is made of compressed activated carbon, which is a highly porous material that is capable of removing a wide range of contaminants from water. Carbon blocks are effective at removing chlorine, sediment, organic compounds, and other impurities from water, making them a popular choice for both residential and commercial water filtration applications.

In this article, we have tried to touch upon everything you need to know to get started with carbon blocks:

How are carbon blocks made?

Carbon blocks are made by compressing activated carbon into a solid block or cylinder. Activated carbon is a highly porous material that is made from a variety of natural sources, such as coconut shells, coal, and wood. Coconut-based carbon blocks produce the best results for purifying drinking water. 

How do carbon blocks work?

Carbon blocks work by using the adsorption process to remove contaminants from water. Adsorption is the process by which contaminants are attracted to and stick to the surface of the activated carbon. As water passes through the carbon block, the contaminants are trapped and removed, leaving behind clean, purified water.

What contaminants can carbon blocks remove?

Carbon blocks are effective at removing a wide range of contaminants from water, including chlorine, sediment, organic compounds, and other impurities. They are particularly effective at removing chlorine, which is a common disinfectant used in municipal water treatment plants. Carbon blocks are also effective at removing other contaminants, such as pesticides, herbicides, and industrial chemicals, which may be present in water sources.

Can carbon blocks remove viruses and bacteria from water?

Carbon blocks are effective at removing a wide range of contaminants from water, but they may not be effective at removing all types of viruses and bacteria. Some carbon blocks are treated with an antimicrobial agent like silver to help kill or remove viruses and bacteria from water, but it is important to carefully check the product specifications to determine its effectiveness at removing these contaminants. It is generally recommended to use a water filtration system that includes a combination of different filtration media, such as carbon blocks and ultrafiltration membranes, to effectively remove viruses and bacteria from water.

Can carbon blocks remove fluoride from water?

Carbon blocks can remove fluoride at lower concentrations. However for effective fluoride removal, it is recommended that you use a system with a separate fluoride filter that uses special fluoride removal media.

Can carbon blocks remove lead?

Carbon blocks are treated with special additives to remove lead, arsenic and other contaminants. Please see our lead removal products here.

What are the benefits of using carbon blocks?

There are several benefits to using carbon blocks in water filtration systems:

  • As discussed, carbon blocks are effective at removing a wide range of contaminants from water. Most of these contaminants are harmful when consumed and can cause a variety of health problems and diseases.
  • They are easy to use and maintain, as they require only occasional replacement.
  • Carbon blocks are cost-effective and can be used for both residential and commercial water filtration applications.
  • They are environmentally friendly, as they are made from natural and renewable materials.

How long do carbon blocks last?

The lifespan of a carbon block depends on the specific type of carbon block and the quality of the water being filtered. In general, carbon blocks can last for several months or even years before they need to be replaced. Check with the manufacturer to know the exact life of the block. It is important to regularly check the carbon block and replace it when it becomes ineffective at removing contaminants from the water.

How do you choose the right carbon block for your water filtration system?

There are several factors to consider when choosing a carbon block for your water filtration system:

  • The type of contaminants present in your water: Different carbon blocks are designed to remove specific contaminants from water. It is important to choose a carbon block that is specifically designed to remove the contaminants present in your water.
  • The flow rate of your water filtration system: Carbon blocks have a maximum flow rate, which is the amount of water that can pass through the block in a given time. It is important to choose a carbon block with a flow rate that is appropriate for your water filtration system.
  • The size of the carbon block: Carbon blocks are available in different sizes and shapes, and it is important to choose a carbon block that fits your water filtration system.

How do you maintain a carbon block?

Here are some tips for maintaining a carbon block:

  • Regularly check the carbon block. Scrubbing the carbon block can extend its life.
  • Some systems let you backflush the block, which will also extend its life.

When to change your carbon block?

  • Decreased water flow: If you notice a decrease in the water flow from your water filtration system, it could be a sign that the carbon block is clogged or needs to be replaced.
  • Increased chlorine taste or odor: If you notice an increase in the chlorine taste or odor of your water, it could be a sign that the carbon block is no longer effectively removing chlorine from the water.
  • Changes in the water quality: If you notice any changes in the quality of your water, or a decrease in the clarity of the water, it could be a sign that the carbon block needs to be replaced.
  • Lifetime: Carbon blocks have a lifetime, which is specified by the manufacturer. It is important to keep track of this, and change the block at the recommended intervals.

In general, it is a good idea to replace your carbon block every 6-12 months, depending on the specific type of carbon block and the quality of the water being filtered. Regularly checking and replacing the carbon block can help ensure that your water filtration system is functioning effectively and producing high-quality, purified water.