Underground Water Tanks

The Duraplas Lattice™ underground tank range is strong, light and space efficient. The patented lattice design allows the tank to maintain a very low profile, which can help reduce excavation compared with deeper underground tank designs. Yard and driveway models are available, giving customers options for different site layouts and installation requirements.

If you are comparing rainwater tank styles, underground tanks are usually chosen when a round water tank needs too much open space, or when a slimline water tank still cannot fit neatly beside a house, shed, fence line or side passage. Underground water tanks are also useful when the tank needs to be hidden from view.

An easy underground tank installation video and engineering drawings are available to help explain the installation process. Driveway models are trafficable when installed correctly according to the relevant engineering requirements.

Underground Water Tank Info

A plentiful supply of clean water is something that most of us take for granted. In the past, water storage tanks were mainly used by farming and rural communities that depended on stored water for their livelihood. Today, rainwater tanks are also common in developed areas and cities such as Sydney, Brisbane, the Gold Coast, Newcastle, the Central Coast and Canberra.

The benefits of harvesting rainfall are many. Rainwater storage can conserve a precious resource, provide water for many household and outdoor uses, and help reduce reliance on mains water. Depending on your roof area, rainfall, tank size and how your system is connected, a rainwater tank may also help reduce your overall home water bill.

Why Choose an Underground Water Tank?

Underground water tanks are best suited to properties where usable outdoor space is limited. Because the tank is installed below ground, the area above the tank can often remain available for lawns, gardens, paths or driveways, depending on the model and installation method.

Unlike some above-ground tanks, underground tanks are hidden from view and do not dominate the look of a property. They can also help reduce evaporation and limit direct sunlight exposure to the stored water.

For urban blocks, narrow properties and homes where appearance matters, an underground rainwater tank can be one of the neatest ways to add useful water storage without losing visible yard space.

Duraplas Lattice™ Yard and Driveway Models

The Duraplas underground tank range includes both yard models and driveway models. Yard models are suited to below-ground installation in non-trafficable areas such as lawns and garden zones. Driveway models are designed for trafficable applications when installed according to the engineering drawings.

Popular options include the LU3000 Lattice™ Underground Tank under yard model, the LU3000 Lattice™ Underground Tank under driveway model, the LU5000 Lattice™ Underground Tank under yard model and the LU5000 Lattice™ Underground Tank under driveway model.

A manhole extension riser is also available for installations where extra access height is required.

Harvesting the Rain

Rain harvesting is a relatively simple concept that involves collecting run-off from roofing or other suitable surfaces. Rainfall is collected by gutters, directed through downpipes and then fed into a rainwater tank.

You may be surprised by how much water can be collected from an average home’s roof. If you have 100 square metres of roof area and receive 5 millimetres of rain, you can collect around 500 litres of water. Over time, that can make a meaningful difference to household water storage.

Storage Tank Choices

Above-ground water tanks are often used on farms, rural properties and larger blocks where land is more plentiful. Round water tanks are still one of the most common choices and are available in many different capacities.

Slimline water tanks are different because they are rectangular, narrow and compact. They suit urban settings where a lower-profile tank can be positioned beside a home, shed, fence line, porch or veranda.

Underground tanks are the third option. They are designed to be installed below ground, which makes them useful when above-ground space is limited or when the tank needs to stay hidden from view.

The Advantages of Underground Tanks

Large above-ground water tanks are not always practical in urban areas where space comes at a premium. Underground rainwater tanks are ideal for these situations because they can be tucked underground and out of sight.

This frees up property space for other uses and helps keep the outdoor area looking clean and uncluttered. Today, harvesting rainwater is viable not only in rural regions but also in cities and suburban settings.

Storage tanks can give you peace of mind because you know you have stored water available when rainfall is limited or when water restrictions affect normal mains water use. In some cases, rainwater systems can also be configured to support everyday household needs and reduce reliance on external water sources.

Browse our Duraplas underground water tanks below to compare capacities, yard models, driveway models, prices and installation requirements.