Water tank cleaning is a necessary procedure that helps maintain your water supply and prevents bacteria from breeding in the tanks. Bacteria can cause unpleasant taste and odors and lead to illness. If bacteria is allowed to build up in the water tank it can also cause damage to the tank. While it is impossible to stop natural deterioration, regular water tank cleaning will slow the process.
Preparing the Tank for Entry
Before any work can be performed in the tank it must be emptied of its contents. This should be done in a safe manner and the wastewater disposed of properly. Workers entering the water tank must be certified for working in confined spaces and should use rubber gloves and safety goggles to protect their skin from chemical spills.
After draining the tank, it must be sanitized and scrubbed thoroughly. A 1:2 dilution of household bleach is recommended. This means that half a bucket of plain, unscented, and uncoloured household chlorine bleach is mixed with one bucket of water. The mixture should be applied with a brush or sponge and then scrubbed. Special attention should be paid to corners and joints in the tank. This is where bacterial residue like algae or biofilm can often build up.
After scrubbing the tank, it should be rinsed with a high pressure washer. This should be done until all traces of detergent are gone. A hose should also be used to rinse the interior piping. This will remove any remaining detergent and ensure that the piping is free of bacteria. water tank cleaning