15000 Litre Underground Potable Water Tank

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FREE Delivery Customer To Offload | 2-3 Weeks

£3,395.00 exc. VAT
Sale price£4,074.00

Tax included



Our 15000 Litre WRAS Approved Underground Water Tank is rotationally moulded from high quality virgin MDPE. This Potable Underground Water Tank is suitable for Drinking Water and is Made In Britain. The WRAS Approved MDPE used to make this tank is frost proof so it will not crack in cold temperatures, making it ideal to store water for human consumption.

This 15000 litre underground water tank must be fully encased in concrete and is only designed to take pedestrian traffic over it once it is installed. There are four possible inlet positions on top of the tank that can accept fittings up to 4", there is also a 545mm extended neck which can be cut down to size as required. Please make sure you read all installation instructions before purchasing this tank. The 15000 Litre underground Water Tank is suitable for uses where WRAS approval is required.

This high quality underground water tank comes with a 600mm vented lid which is also used for general maintenance. This 15000 litre Underground Water Tank does not have any outlet as standard but we can fit outlets up to 8",  please email hello@thetankshop.co.uk for prices. 


  • Capacity: 15000 Litre (3300 gallons) 
  • Height (without neck): 2900mm
  • Height (with neck): 3350mm
  • Diameter: 2700mm
  • Weight: 380kg
  • Colour: Black
  • Virgin Medium Density Polyethylene (MDPE)
  • WRAS Approved for Drinking Water
  • 600mm Screw Down Lid (Access)
  • 10 Year Warranty Against Manufacturing Defects

Installation Instructions for Large underground Water Tanks

We can supply a range of accessories for this tank including pumps, filters and rainwater piping, just email hello@thetankshop.co.uk with your requirements 

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