Regular cleaning of a private water tank is good for your health. However, the challenge is greater for professional use in the food or pharmaceutical industry. Particularly high demands are placed on hygiene and cleanliness here. Various legal regulations may have to be observed that relate to the handling of hazardous substances, the protection of the water cycle, food safety, or occupational safety.
How to proceed with tank cleaning
Empty the container and unscrew the fittings
For thorough tank cleaning, you must first remove all of the contents. The best way to do this is to unscrew the outlet tap at the same time. This makes it easier to empty and clean the tank.
Clean the outside of the water tank
First, you should rinse the outside of the water tank thoroughly so that no new dirt gets inside when you clean the inside afterward. No special cleaning agent is required to clean the tank from the outside. Water, a sponge or a brush, and a household cleaning agent are sufficient to remove external dirt. If you want to do it as quickly as possible, you can use a high-pressure cleaner.
Clean the inside of the water tank
For this step, you will need a pressure washer, detergent, and water. Which cleaner you have to use for cleaning the interior depends on what substance you previously stored in the container. There are cleaning agents for private water tanks that are specifically effective against algae or bacteria. It is important to always remove algae completely. You can clean the water tank with citric acid in a particularly environmentally friendly way. In the industrial sector, depending on the chemical properties of the previous tank content, agents based on acids or alkalis are often used such as cleaning agents containing chlorine.
To clean the inside of the water tank, mix the cleaning agent with water in the manufacturer’s recommended mixing ratio and add it to the tank of the pressure washer. Then spray the inner walls thoroughly with the cleaning solution through the filling opening of the container. Finally, rinse generously with clear water until there are no more cleaner residues.
Clean the tank fittings
To ensure that the contents of the tank are not contaminated during withdrawal, it is important to clean the outlet tap and the corresponding seal very thoroughly. Use the same cleaning agent for this as for cleaning the interior. With specially shaped brushes, you can also reach hard-to-reach nooks and crannies. Finally, rinse everything out with clear water and screw the fittings back onto the tank. Check the seals for any damages. Make sure to close the filling and outlet openings securely.