Australian Tanks 1300 282 657

How to Clean your Water Tank?

Posted By :
Comments : Off

You might be thinking why one want to clean a thing like water tank but you would need to clean it maybe in a year or so. In fact, it is very important to clean and disinfect your water tank after every year in order to avoid any algae growth or unwanted bacteria in water. This will infect your water and can cause harmful effects to you as unhealthy water is the cause of most of the human diseases. So you must know how to clean your water tank and the method is given below:

There are two types of water tanks; one is accessible for cleaning and other is inaccessible for cleaning. You need to first notice which one of these water tanks is yours.

Tank which is accessible for cleaning:

The tank which is accessible for cleaning should be cleaned by:

  1. First of all, take out all water from the tank.
  2. Wash the tank by throwing water with full pressure on the walls of tank. You can also scrub it with any sponge to remove any algae or other unwanted stuff.
  3. Then wash it again with the help of water.
  4. Take household bleach and mix it with water and make a nice mixture.
  5. Apply this mixture onto walls and bottom of your water tank and leave it for couple of hours.
  6. Rinse the tank thoroughly with water.
  7. Tank is clean to be filled again with fresh water.


Tank which is inaccessible for cleaning:

The tank which is inaccessible for cleaning should be cleaned by:

  1. Make sure that the tank is filled with water. If it is half empty, fill it again with water.
  2. Now add some household bleach in the tank water.
  3. It is better to wash the water taps of the tank as well. As the tank is already filled with bleach mixture, run the tap for some time and the mixture will disinfect the taps as well. When you start smelling the chlorine odor from the taps, close them.
  4. Leave the mixture in the tank for overnight.
  5. Next day, you must drain the tank.
  6. Fill tap water in it to be used again.


Cleaning a Rain water tank:

If you own rain water tank and you want to clean it, the method is given below:

  1. It is not necessary to empty the tank completely. You can clean it even if it has some water in it.
  2. First of all, remove the sludge layer which is usually found at the bottom of the tank which is dirty.
  3. Once the sludge layer is removed, move on to filter the remaining water in order to remove any leftover particles.
  4. You will have to sanitize the water with the help of non-chlorine food-grade water disinfectant.
  5. The sediment is then vacuumed out of the tank.
  6. Now the tank is ready to be used for the next rainy season.


In some cases, people prefer to call professionals for the cleaning of water tanks.