Coconut Shell Inline Post Carbon Filter: What It Is and What It Does

Water treatment systems are increasingly common in homes and businesses because of taste, odour and contamination issues in mains water. Treating the water is not enough on its own, however; it should also taste and smell pleasant. One of the components that provides this finishing touch is the inline post carbon filter. Made with activated carbon from coconut shells, it improves the taste and odour of water in the final stage of the treatment system.

This article explains what a coconut shell inline post carbon filter is, what it does, where it is installed and what to keep in mind when using it.

What Is an Inline Post Carbon Filter?

An inline post carbon filter is a capsule-type activated carbon filter with connections at both ends, used as the final (post) stage of a water treatment system. “Inline” means it is installed directly on the tubing without a separate filter housing; “post” means it is positioned after the main treatment stages. It is often referred to as a “taste filter”.

Why Coconut Shell Activated Carbon?

Activated carbon can be produced from various raw materials such as coconut shells, coal or wood. Coconut shell activated carbon has a dense micropore structure, which makes it effective at capturing the small molecules responsible for taste and odour in water. Its hard, abrasion-resistant structure also releases less carbon fines.

What Does It Do?

• Improves taste and odour: It adsorbs residual chlorine compounds and organic substances that cause unpleasant taste and odour.
• Removes storage-related taste and odour: In reverse osmosis systems, treated water is held in a pressurised tank before it reaches the faucet. The post carbon filter removes any taste or odour picked up during storage.
• Final polishing: It gives the water a final “polishing” step after the treatment stages, helping deliver clear, pleasant-tasting water.

Where Is It Installed?

In household reverse osmosis systems, the inline post carbon filter is usually installed between the pressurised storage tank and the dedicated drinking water faucet, so that water drawn from the tank is filtered one last time before it reaches the faucet. Install the filter according to the flow direction arrow marked on it.

Use and Maintenance Tips

• Flush on first use: Let water run through a new filter for a while to flush out carbon fines.
• Replace regularly: The adsorption capacity of activated carbon is used up over time. Replace the filter at the interval or capacity recommended by the manufacturer.
• Correct size and connection: When buying a replacement, choose a filter that matches the connection type and size of your system.
• Easy installation: Thanks to its inline design, the filter can be replaced simply by disconnecting and reconnecting the tubing.

Applications

• Household reverse osmosis (RO) water purifiers
• Under-sink drinking water filter systems
• Drinking water treatment systems in offices and businesses
• Water dispensers and similar drinking water equipment

Frequently Asked Questions

Conclusion

The coconut shell inline post carbon filter is an economical, easy-to-replace solution that improves the taste and odour of water at the final stage of a treatment system. ORFA supplies a range of filters for household and industrial water treatment systems; you can explore all options in our water treatment devices and filter systems product group.