15000 Litre Underground Rainwater Harvesting Tank - Home + Garden

FREE Delivery*
FREE Delivery Customer To Offload | 2-3 Weeks

£3,800.00 exc. VAT
Sale price£4,560.00

Tax included



The 15000 Litre Garden Irrigation and Home and Garden system is an underground rainwater harvesting system thats designed to be easy and simple to set up. The system consists of a stainless steel water pump which you will need to plumb in to your house so that you can use rainwater to flush toilets. It also comes with pipe work connections (4" drainage not included) and a filter. A rainwater harvesting system is designed for user to save money on mains water consumption and is better for storing, collecting and using for domestic and commercial purposes. You can use your stored water for many jobs around the garden and home for things like car washing, window cleaning, irrigation and toilet flushing which is around 35% of a hosueholds water usage.

Tank Benefits - 15000 litre underground water tank is perfect for those with high water tables or generally difficult digging conditions. Each tank is fitted with a 16'' manhole access lid. Although not predrilled, inlet and outlets (upto 4") can be made anyway on the tank. Located at the bottom is a sump perfect for installing a water pump. 

Stainless Steel Water Pump - Maximum output: 61 litres/min, Maximum head: 46m, 1200 Watts, 230V motor, 19 litre stainless steel tank, Operating pressure: 3 bar (43psi), Self-priming pump, Auto pressure, water-resistant on/off switch, 1" Outlet

Underground Filter - Made from the same high-quality MDPE as the underground water tank, the filter box can be installed anywhere along the inlet pipe between the tank and the down pipe. Ensure you can gain access to the filter for cleaning. Please note that the filter box lid is designed to withstand foot traffic only.

Rainwater Pipe - This system comes with 25m of 25mm Rainwater Harvesting Pipe. This pipe can be easily identified be the Green strip running down Black pipe. This pipe must be used under the Water Regulations.


Delivered Complete with:

  • Capacity: 15000 Litre Underground Water Tank
  • Virgin Medium Density Polyethylene (MDPE)
  • 10 Year Warranty Against Manufacturing Defects
  • Height: 2900mm
  • Diameter: 2700mm
  • Weight: 360kg
  • Colour: Black
  • 1 x Stainless Steel Water Pump
  • 1 x Walk-on Removable Lid
  • 1 x Extended Neck
  • 1 x In-Line Filter Box
  • 1 x 25m of 25mm Rainwater Harvesting Pipe
  • 3 x 25mm Pipe Connectors
  • 1 x 1" BSP Isolator Valve

Optional Extra:

  • Back Up In A Box - This back up in box detects when the tank water level is running low and tops up the water level to ensure the tank never runs out of a water supply.

      Payment & Security

      American Express Apple Pay Diners Club Discover Google Pay Maestro Mastercard PayPal Shop Pay Union Pay Visa

      Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.