Why underground water tank is important in NSW

Underground water tanks are a must-have installation for any residential area. They come in different sizes and styles. Buried polyethylene tanks are a popular option for people with limited space and budget. The tank is buried shallow in the ground where minimal pressure is exerted on the walls. Concrete underground tanks, on the other hand, are not limited in size, shape or depth. They can extend deep into the ground without succumbing to the pressure of the earth. Installation of an underground tank requires professional input. The tank is a structural installation that requires a meticulous approach for a successful build. Whether you are going for a concrete tank or a buried plastic tank, here are some reasons why you need an underground tank.

Water storage

Underground water tanks are great for holding water. They are high capacity installations guaranteed to safely store water for home use. Plastic tanks can extend to 37000litres capacity installations while the capacity of concrete tanks is only limited to the budget of the owner. Underground tanks are designed to take on the high pressure from the surrounding earth and the water stored in it. Concrete tanks that extend deep into the ground or are installed into the foundation of a building come with extra reinforcement to take on the immense pressures.

Rainwater harvesting

Rainwater is a free resource that can be utilised to serve the water needs of a residential building or an office space. The rainwater harvesting system combines gutters, collection drains and a water tank. Roof runoff is collected into the gutters which drain into the collection drains or downpipes. The water ends up in an underground tank where it’s stored for future use. Rainwater harvesting is ideal for supplementing council water supply or feeding an off-grid water line. Large capacity tanks are ideal for large residential spaces, industries and farms. An underground water tank uses gravity to facilitate rainwater collection. However, utilisation of the water requires pumping the stored water to the main water supply of the house or a secondary roof tank. An investment in a rainwater harvesting system is worthwhile

Water temperature control.

Above ground, water tanks are great for holding water but not maintaining good temperatures. During the winter when temperatures drop to subzero levels, water in above-ground tanks is likely to freeze. The stored I’ve becomes unusable until it melts. During summer, the water temperature may rise to uncomfortably high levels limiting the use. However, underground tanks maintain water temperatures at acceptable levels. No matter how cold or hot it gets outside, water in an underground tank always remains within a good temperature range. The underground placement provides good insulation against changing temperatures above the ground.


Having a water tank is good for your home, but an underground tank, in particular, is even better. The tank does not take away from your outdoor aesthetics. Above ground, tanks are eyesores to the landscape of residential or office building. Many people install the tank in the backyard or around corners away from the welcoming view. Regardless, the tanks still look bad no matter how hard you attempt to conceal them. Underground tanks, on the other hand, are well concealed under the earth. They free up space around your compound and give room for beautiful landscaping designs. Only the hatch sticks above the ground but it easily blends into the landscape.

An underground tank is the ideal water storage solution for any office or residential building. Invest in one and start reaping the benefits.

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