Underground House Systems

Reduce household water bills with an Underground Rainwater Harvesting System by Water Tanks UK. We stock various sizes and designs to complement domestic and commercial properties, and we can assist with all the pumps and filters you need to transform your rainwater into a valuable resource for watering plants, washing vehicles, flushing toilets, cleaning patios and windows, and even topping up water features and ponds. Many of our underground rainwater tanks include a direct pressure system to feed the supply directly to your tap or hose, along with additional features such as a mains water top-up controller, pump turret and lifting chain, floating intake, and a rodent guard to keep pesky wildlife at bay. A telescopic neck and lid ensure quick and easy access, while an in-tank filer ensures your harvested rainwater is always 100% debris-free. Browse our rainwater harvesting systems today and contact us for further information. We manufacture our below-ground water collection tanks here in the UK to British and European regulations.