Mitigating the Health Hazards of Corrosive Water Tanks

A view of a large water tank

Most water distribution systems rely on water storage tanks, which can come in either elevated or ground-level units. These containers play a major role in ensuring sufficient hydrostatic pressure and continuous supply of safe and healthy drinking water to many communities, both residential and commercial in nature.

It is a must for all water storage tank owners to ensure proper maintenance of these vessels. Failure to do so can lead to the tanks posing numerous health hazards, as corrosion can take place on both the interior and exterior surfaces of the containers.

Surface cleaning through abrasive blasting

For Euro-Blast NZ, providers of sandblasting in NZ, preparing metals is a tough job that requires numerous processes. The same principle applies with your water tanks.

Abrasive blasting, such as garnet sandblasting, is one of the fastest and most effective means to reduce and eliminate the effects of corrosion on water storage tanks. In addition to giving the interior and exterior a thorough cleaning, abrasive blasting also helps prepare these surfaces for application of protective coating. Applying protective coating further minimises the potential of rusting and corrosion development in and on these large water vessels.

Aggressive water that leads to corrosion of water storage tank surfaces

One of the primary causes of corrosion affecting water tank surfaces is aggressive water. Although the water itself does not pose any immediate health concern, it has properties that can dissolve the materials used in water storage tanks, resulting in poor water quality. Corrosive water can also affect that metal elements of your plumbing system.

Because of its corrosiveness, aggressive water causes the rusting of the interior surface of water tanks. Apart from the rusting, the minerals it dissolves also find their way into the water, contaminating and polluting it.

Preventing further damage and health issues

Water storage tank owners should regularly have these containers cleaned as part of their ongoing maintenance strategy. Through sandblasting services and application of protective coating, they can drastically improve the quality of their water supply.