How Often Should You Clean Your Water Tank?
The World Health Organization recommends cleaning your tank at least every 6 months. Learn the factors that may call for more frequent cleaning and how to determine the right time for your tank.

Cleaning your water tank is not just a routine task — it is a health necessity that should not be taken lightly. Many families don’t know when to clean their tank, and some can’t remember the last time it was cleaned.
What Does the World Health Organization Say?
The World Health Organization (WHO) recommends cleaning drinking water tanks at least once every 6 months. This interval is the maximum acceptable period for maintaining water quality and preventing the growth of bacteria and algae.
Factors That Call for More Frequent Cleaning
- High summer temperatures accelerate the growth of algae and bacteria
- A tank exposed to direct sunlight without proper shading
- A tank close to trees or dust sources that may seep into it
- Noticing any change in the water’s color, taste, or smell
- Frequent water outages that leave the tank empty for long periods
How to Determine the Right Time for Your Tank
The general rule is: if 6 months have passed since the last cleaning, it’s time. But if your tank is exposed to any of the factors above, we advise shortening the interval to 3-4 months.
Prevention is always cheaper and easier than treatment. Cleaning your tank regularly protects your family and saves you far greater health costs.
Crystaleh’s Advice
We advise our customers in Amman to clean twice a year — once before summer and once before winter. This ensures the water stays clean all year round regardless of weather conditions.
Want to schedule a cleaning for your tank? Contact us via the request form or WhatsApp and we’ll arrange the earliest available appointment for you.
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