Merits And Demerits Of An Above Ground Storage Tank

By Krystal Branch

An above ground storage tank are one of the two types of storage tanks. These tanks are situated either on the ground or on a slightly raised ground. Their capacity is regulated to 10,000 litres for those whose contents are any other liquids other than water. One thing to note is that they both have advantages and disadvantages over the other designs.

Unlike the underground designs which involves digging the ground to create the reservoir, these tanks are relatively easy to put up and maintain. They do not involve long procedures therefore less costs. This makes them more acceptable individuals who seek to minimize installation costs and maintenance expenses. This has also enhanced development of storage facilities in remote areas especially water storage.

They are also very easy to repair in case they are corroded or if they start leaking. All designs are susceptible to risks of corrosion and leaks but these tanks have a better advantage over the underground because their strategic location making them easy to repair. The fact that they are placed above and there are no excavation activities to confirm the results of exposure to risks is not a requirement gives it an added advantage.

The third advantage is that they can be easily monitored. They are visible and thus the owner can easily monitor any changes which may either call for repairs. This makes this type of tanks easy to maintain and also easy to use. This also ensures there is continuous maintenance process which increases the economic life of the tanks.

They not only have pros but they do have cons as well. The major disadvantage of using these designs is that they are very susceptible to adverse weather conditions. These conditions the exposure of the tanks to risks associated with them such as breakages and corrosion. They are mostly raised above ground but in an open space free from shades thus increasing their exposure to too much heat from the sun during the day and very low temperatures during the nights. The difference in these conditions will result to expansion and contraction that may cause bursting. Other adverse conditions like thunderstorms have a negative effect.

Apart from the effect of weather conditions, these tanks are also susceptibility to accidents. They are constructed above grounds and that means they can be accessed easily by various individuals who may cause various forms of accidents on the tanks. An example is whereby individuals working around the tanks leave oil tanks running and accidents of fire result in one way or another. These not only results to accidents to the tanks but also extends to those situated close.

It is also disadvantageous to use these designs because one will have to incur an extra cost to acquire additional space to establish them. The tanks are built above grounds and that means one is expected to use an extra space. If there are many tanks especially for companies dealing with liquid products, it will be way too much. One can save space by constructing underground tanks.

An above ground storage tank therefore requires extra management costs and expenses in order to keep them free from damage and to preserve its contents. It requires physical security set up such as fences and walls. This generally increases its costs. Apart from that, it takes extra expense to pump the contents like water or fuel into the tanks. These also contribute to extra expenses above the underground storage tanks which are more secure.

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