Underground Rain Water Tanks

Tanks You Can Trust

We'll help you select the right durable, in-ground, tank for your site from our range of concrete rain water tanks, ranging in size and capacity from 3,800 to 10,000 litres. It's the beauty of what you don't see that provides the water to freely flush your toilet, wash your car, hose your driveway and water your garden from harvested rainwater.

Squat Tank

The shape of this rainwater tank suits rocky terrains, where only a shallow hole is required. This helps minimise excavation costs.

Medium Tank

The medium tank is suitable for a wide range of geographical profiles and provides a good balance between size and capacity. This is our most popular and economical tank.

Tall Tank

With greater capacities to harvest large volumes of rainwater, our tall rainwater tanks maximise rainwater harvesting for extended supply in long dry periods.

Extra Strength

Every Sydney Water Tank is individually wet cast from 40mpa steel fibre reinforced concrete so there are no seams between the wall and floor. For a watertight seal, all inlets and outlets are cast in the rain water tank, and the lid is bonded and sealed in the factory.

The access turret and cover is tested to withstand a top load of 510kg, so it's safe to go under your garage, driveway, patio or garden. Our tank manufacturing process is conducted under a Quality Assurance scheme to ensure that each of our underground water tanks complies with the quality requirements of Australian Standard AS1546.1.

Located in NSW and providing and servicing rain water tanks in Sydney, Canberra and beyond you can trust Sydney Water Tanks to supply clean rainwater to your family home for years to come.