Even the best RO water purifier can deliver unsafe drinking water if its storage tank is not cleaned regularly. Over time, bacteria, algae, and sediment can build up inside the tank, contaminating purified water and putting your family’s health at risk.
Sanitizing your RO storage tank is a simple but critical maintenance task that ensures your drinking water stays clean, fresh, and safe.
Why RO Storage Tank Cleaning Is Important
The RO membrane removes impurities, but the storage tank holds water for hours or even days. Without proper cleaning, stagnant water can encourage bacterial growth and foul odors.
Regular sanitization helps maintain water taste, prevents microbial contamination, and extends the life of your RO system.
How Often Should You Clean an RO Tank?
Most experts recommend cleaning the RO storage tank every 6 to 12 months, depending on water usage and source quality.
If you notice unusual taste, odor, or cloudiness in the water, immediate cleaning is advised.
What You’ll Need Before You Start
Before cleaning your RO tank, gather these items:
• Food-grade hydrogen peroxide or unscented household bleach
• Clean cloth or sponge
• Clean water supply
• Gloves for hygiene and safety
Step-by-Step Guide to Cleaning an RO Storage Tank
Step 1: Turn Off the Water Supply
Switch off the water inlet and unplug the RO system to prevent refilling during cleaning.
Step 2: Drain the Storage Tank
Empty all stored water by opening the RO tap completely.
Step 3: Add Sanitizing Solution
Add a small amount of food-grade sanitizer or diluted bleach into the tank through the inlet.
Step 4: Refill and Rest
Turn the water supply back on and let the tank fill. Allow the solution to sit for 30–45 minutes.
Step 5: Flush Thoroughly
Drain the tank completely and refill it once or twice to remove any residual sanitizer.
Common Mistakes to Avoid
Using scented cleaners, skipping the flushing step, or cleaning too infrequently can compromise water safety.
Always use food-safe cleaning agents and ensure no chemical residue remains in the tank.
Why RO Maintenance Matters for Rental Homes
In rental properties, RO systems are often neglected between tenants. Poor maintenance can lead to health complaints and water quality disputes.
Platforms like squaresky solutions help renters and landlords manage home utilities responsibly by making it easier to understand maintenance responsibilities and property care expectations.
Final Thoughts
Cleaning your RO storage tank is a simple task that delivers big benefits. Regular sanitization ensures safe drinking water, protects your RO system, and supports long-term household health.
By making RO tank cleaning part of your routine home maintenance, you can enjoy pure, great-tasting water with confidence every day.