Cleaning a water storage tank properly involves several crucial steps to ensure the water remains clean and safe for consumption. Here's a detailed approach:

1. Preparation

  • Turn off water supply: Stop the inflow and outflow of water.

  • Empty the tank: Drain all the water, using a pump if needed.

  • Access the interior: Open any hatches or lids to access the inside of the tank.

2. Sludge Removal

  • Manual or mechanized removal: Scrape or vacuum out any sludge or sediment that has accumulated at the bottom of the tank. Tools like vacuum pumps can be useful for this stage​  Rahobefikar

3. Scrubbing

  • Physical scrubbing: Use a scrubbing brush with a long handle to scrub the interior walls of the tank. Focus on areas with visible dirt, algae, or scaling​(
    Vivatra Shine
    Tank Scrub)​


  • Non-abrasive cleaning agents: You can use mild, eco-friendly cleaning solutions that won’t contaminate the water.

4. High-Pressure Cleaning

  • High-pressure water jets: Once the tank is scrubbed, use high-pressure water jets to wash off the loosened dirt, algae, and bacteria from the walls​(

    ). This method ensures thorough cleaning and sanitation.

5. Vacuuming and Dewatering

  • Vacuum cleaning: After the wash, use vacuum pumps to remove the dirty water and any remaining debris. Mechanized dewatering systems can make this process faster and more efficient​(

  •  

  • 6. Disinfection

  • Apply disinfectant: After cleaning, spray or wipe down the tank’s interior with an antibacterial agent or a chlorine solution to disinfect it​(

    . Ensure the product is safe for drinking water storage.

  • Soaking time: Let the disinfectant sit for a while to kill any remaining bacteria.

7. Final Rinse

  • Rinse with clean water: Once disinfected, rinse the tank thoroughly with clean water to remove any remaining cleaning agents.

8. Drying and Final Inspection

  • Air-drying: Allow the tank to air dry completely, or use air blowers to speed up the process. This step ensures no moisture remains, which could promote bacterial growth​(

    ).

  • Inspect: Conduct a final inspection to ensure that no areas are missed.

9. Refill

  • Refill with fresh water: Once the tank is dry, refill it with clean water and resume its use.

Cleaning Frequency

To maintain good hygiene, it’s recommended to clean your tank at least twice a year or more frequently if the water quality deteriorates​(

This process ensures that your water tank stays free of contaminants, which is essential for maintaining healthy water for drinking and household use.

read also: Water Tank Cleaning service 

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