Underground Tanks

You’ll find the best Underground Tanks for rainwater harvesting at Water Tanks UK, so why not shop our exclusive online collection today? We stock both Plastic Underground Tanks and Concrete Underground Tanks to complement domestic, commercial, industrial, and agricultural applications, with sizes to suit every property in our best-selling range. Installing an underground tank is one of the easiest ways to harvest rainwater, and it could help you save money on your water bills. Once installed, you can use water collected in your underground tank for watering plants, washing vehicles, irrigation systems, flushing public toilets, hosing down farming equipment, or even as an emergency supply in fire-risk zones. Our underground water tanks are energy efficient, environmentally friendly, and designed to slot seamlessly underground. They have easy-access manhole covers for maintenance, and some models can support both pedestrian and vehicular traffic.