Factors to Consider When Choosing an Underground Water Tank

underground water tank

If you’re out to maximize the space available within your property, you might consider installing an underground water tank. By having the tank below the ground, you free up space above for other things like lawns and driveways. However, before installing an underground tank, you should consider several factors. You don’t want your hard-earned money to go down the drain by selecting the wrong tank. Since you’ll be storing water for domestic use, you’d like to ensure it’s safe for drinking, and it all depends on the type of tank you choose.

Here’s what to consider to ensure you get the right tank.

Type of Tank

There are different types of in-ground tanks. Depending on your needs and the space available, you can either go for a concrete, plastic, or metal tank. If you’re storing water for domestic use and you have enough space in your property, a concrete tank would do. Concrete tanks are not only long-lasting but also versatile. They can extend to any size and assume any shape. Additionally, they keep the water cool despite high temperatures above the ground. 

If you’re planning to construct a small tank, a plastic one will do as plastic tanks come in a variety of shapes and sizes. While metal tanks can manage pressure below the ground, they undergo corrosion when exposed to water, leading to contamination.


The Type of Water You Want to Store

Homeowners use underground tanks to harvest rainwater for home use or irrigation. However, these tanks can also be used for industrial purposes whereby wastewater is drained into the tank. If you’re installing in groundwater tank for wastewater, ensure it has insulation to avoid corrosion. Farmers looking for permanent water storage can install an underground concrete tank as it can hold more water. Since concrete tanks require minimal maintenance, they’re the best choice for long-term purposes

Type of Soil

If the type of soil in your property retains water for long, avoid installing a metal tank as dirty water can seep through the seams. For this type of soil, consider installing a plastic or concrete tank, as they’re impermeable. As such, the stored water doesn’t get contaminated, which makes it unsuitable for home use. 

Duration of Residence

Before installing an underground tank, you should consider the duration you intend to stay in your current residence. If you’re only there for less than two years, it’s not advisable to install a concrete tank. In this case, a plastic tank would be the best option, as you can easily excavate it and move it to another location. Concrete tanks are suitable for property owners who want to store water for long-term use. 


You should consider the amount of money you’d like to spend before purchasing an underground tank. While concrete tanks are long-lasting, they’re quite expensive, and you should be prepared to part with lots of cash. If you’re working with a lower budget, go for a plastic tank, though it’s not a permanent solution. Install an underground tank today to boost your water supply. 

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About the Author: Rohit Puri

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