Activated Carbon (GAC) Chlorine, Taste & Odour Reduction Filter – 14×65 FRP Vessel – Manual Backwash

The 14×65 chlorine, taste and odour reduction filter uses granular activated carbon to reduce free chlorine and a range of taste- and odour-causing compounds. It is a useful polishing stage where the carbon type, bed volume and contact time match the treatment objective.

This complete media-vessel package includes the 14×65 FRP vessel, manual backwash valve and granular activated carbon (GAC).

Key Features & Benefits

• Chlorine reduction: Can reduce free chlorine before selected downstream processes or at point of entry.
• Taste and odour improvement: Adsorbs suitable organic compounds that affect the sensory quality of water.
• Serviceable carbon bed: Backwashing removes trapped suspended material; the carbon can be replaced when its treatment capacity is exhausted.
• Manual backwash: The operator selects and times the cleaning stages, then returns the valve to service. This suits installations with someone available to carry out routine maintenance.
• FRP construction: A corrosion-resistant vessel body houses the treatment bed.

Applications

• Municipal-water polishing for free chlorine, taste and odour.
• Chlorine reduction ahead of compatible reverse-osmosis systems.
• Polishing of pre-treated borehole or stored water where suitable organic compounds are present.

Technical Specifications

• Product code: H2OW1138
• Vessel size designation: 14×65; nominal vessel designation, not the installed height including the valve.
• Vessel material: Fibreglass-reinforced plastic (FRP).
• Treatment media: granular activated carbon (GAC)
• Head / control: Manual backwash valve
• System design flow: Select from the water analysis, media bed depth, required outlet quality and available backwash supply. Vessel size or valve capacity alone does not establish the treatment flow.

What’s Included

• Vessel: 1 × 14×65 FRP vessel.
• Control valve: 1 × Manual backwash valve.
• Media: granular activated carbon (GAC) supplied for this product configuration.

Installation & Use

• Before installation: Have the source water tested and confirm the treatment sequence, operating flow and backwash requirements.
• Site connections: Arrange inlet and outlet pipework, suitable isolation/bypass provision and a correctly sized drain for backwash water.
• Commissioning: Load and condition the media according to the media and valve instructions. Leave the required expansion space; supplied bag quantities are not an instruction to fill the vessel to the top.
• Cleaning control: Follow the fitted valve instructions for backwash and rinse. Time each stage and return the valve to service when cleaning is complete.
• Operating limits: Use the lowest pressure and temperature limits of the vessel, valve and other fitted components. Isolate and depressurise before opening the vessel.

Important Information

• Contact time: Size the system using the actual carbon bed volume and design flow. Higher flow reduces contact time and may reduce treatment effectiveness.
• Media replacement: Backwashing does not restore exhausted adsorption capacity. Replace the carbon according to treated-water testing, loading and breakthrough.
• Feed-water quality: Reduce sediment and significant iron or manganese loading before the carbon stage where necessary.
• Scope of treatment: GAC is not a water softener or a disinfection stage. Chloramine and specialised contaminant removal require a carbon grade and design verified for that duty.
• Complete treatment design: Additional oxidation, pH correction, softening or disinfection may be required for the intended use. A media vessel alone does not establish that water is suitable for drinking.

Carbon Contact Time & Flow

Use the following existing chart as an indicative comparison only. It is not a product flow rating: the actual carbon bed volume, carbon specification and contaminant target must be confirmed when sizing the filter. Different treatment duties require different contact times.