How to Set Up and Activate a DMI-65 Media Vessel

How to Set Up and Activate a DMI-65 Media Vessel

Introduction

DMI-65 is a high-performance catalytic filtration media designed for the removal of iron, manganese, and arsenic from water. To ensure optimal performance, the media must be installed, activated, and maintained correctly.

This guide provides a step-by-step process to help you set up your DMI-65 media vessel effectively.

1. What You Will Need

Before starting, ensure you have the following:

✅ DMI-65 filtration media (amount depends on vessel size required)
✅ Gravel support bed (1-2 mm size for proper drainage)
✅ Water filtration vessel (FRP, stainless steel, or mild steel with lining)
✅ Chlorine dosing system (sodium hypochlorite or calcium hypochlorite)
✅ Clean water source
✅ Pressure gauge (for monitoring flow rates)
✅ Backwash control valve (manual or automatic)

2. Setting Up the Vessel

Step 1: Assemble the Vessel

  1. Ensure the vessel is clean and free of debris before installation.
  2. Install the bottom distributor and internal pipework correctly.
  3. Add a gravel support bed (100-200 mm layer) at the bottom to aid filtration and prevent media loss.

Step 2: Load the DMI-65 Media

  1. Carefully pour the DMI-65 media on top of the gravel layer.
  2. Fill the vessel to the recommended level (60-75%) of its total height.
  3. Ensure the media is evenly spread across the vessel.

Step 3: Connect the System

  • Securely connect the inlet, outlet, and drain pipes.
  • Ensure the control valve is set up correctly for backwashing and filtration cycles.

3. Activating the DMI-65 Media

DMI-65 requires chlorine activation before it can effectively remove iron and manganese.

Step 1: Chlorine Soak

  1. Slowly fill the vessel with clean water to avoid disturbing the media.
  2. Add a chlorine solution to achieve a 0.1-0.3 mg/L residual chlorine level.
  3. Let the media soak in chlorinated water for 12-24 hours to activate its catalytic properties.

Step 2: Backwash the Media

  1. Initiate a gentle backwash to remove fine particles.
  2. Backwash flow rate should be 10-12 m³/h per m² of filter area.
  3. Continue backwashing until the water runs clear (typically 10-15 minutes).
  4. Rinse the media with clean water.

Step 3: Forward Flush

  1. Run the system in normal service mode at a low flow rate for 10-20 minutes.
  2. Check that a chlorine residual remains in the water to maintain media activation.

4. Operating the System

Chlorine Dosing

  • DMI-65 requires a continuous chlorine residual (0.1-0.3 mg/L) to maintain its effectiveness.
  • Install a chlorine dosing system upstream of the filtration vessel.

Backwashing Schedule

  • Backwash every 1-3 days or when pressure loss increases.
  • Backwash duration: 10-15 minutes (until water runs clear).
  • Rinse cycle: 5-10 minutes before returning to service mode.

5. Maintenance & Best Practices

✅ Monitor chlorine levels regularly (0.1-0.3 mg/L recommended).
✅ Check system pressure to determine when backwashing is needed.
✅ Inspect the media annually for exhaustion or contamination.
✅ Replace the media every 5-10 years, depending on usage and water quality.

âš  Important:

  • Never operate the system without chlorine—this deactivates the media.
  • If chlorine levels drop, reactivate the media by soaking it in chlorinated water for 12-24 hours.
  • Ensure installation complies with local water treatment regulations.

Need Assistance?

If you have questions about setting up your DMI-65 media vessel or need custom water treatment solutions, contact us today! Our team is ready to assist you with expert advice and product recommendations.

🔹 Browse our range of DMI-65 media and iron removal systems [Click Here]
🔹 Contact our water treatment specialists [Click Here]

Final Thoughts

Correct setup and activation of your DMI-65 filtration system will ensure long-term efficient iron, manganese, and arsenic removal. By following these steps and maintaining proper chlorine dosing, you can keep your system running optimally for years to come.