How to clean a rooftop/plastic water tank?

Cleaning your water tank can be a boring task but it is important to ensure the water inside stays clean and bacteria-free. In small families, most people use plastic tanks for storing water. Water tanks will acquire algae, silt, and bacteria over time which can be harmful to health. That’s why you should clean your tank at least once a year.

Here is the process for cleaning rooftop tanks.

The first step to cleaning your tank is to empty all of the water from it.
You can remove any remaining water by using a vacuum
Get inside and scrub the tank wall using liquid soap and detergent.
You can use a power washer to clean inside the water tank.
After cleaning you can use a vacuum to remove the remaining liquid and residue.