These tanks are manufactured from heavy duty polyethylene and are designed to be sunken into the ground and used as a sump for storing rainwater. Rainwater can be collected from a roof area via a drainpipe or ground run-off can be collected from a concrete surface and directed into the tank.

Each tank is fitted with a fixed man-hole cover enabling access from the surface. The tanks may be drilled and bulk-head fittings used to create a drainpipe entry point or it is possible to have a section of plastic drainpipe welded into the top of the tank at extra cost.

A hole can be drilled at the top of the tank to allow water in the tank to be drawn off. The simplest method is to use a portable suction pump at the surface to draw water through this hole to water the garden via a hose-pipe for example or to fill a smaller water butt on the surface. Alternatively a submersible pump could be used inside the tank and the power cable routed out through the top of the tank via a cable gland.

Please note these tanks are not suitable for the storage of drinking water. For ground installation these tanks must be set into concrete - installation guide (PDF 423kB).

PS1 350 litre Tank

Capacity: 350 litres (77 gallons).

Diameter: 610mm (24").
Height: 1275mm (50").
Cover diameter: 450mm (18").

Price £207.90    

BHS1209 1000 litre Tank

Capacity: 1000 litres (220 gallons).

Diameter: 1260mm (49½").
Height: 1000mm (39½").
Cover: 750mm (29½") square.

Price £438.90    

BHS1209E 1500 litre Tank

Capacity: 1500 litres (330 gallons).

Diameter: 1260mm (49½").
Height: 1490mm (58½").
Cover diameter: 450mm (18").

Price £994.90    

BHS1215 1800 litre Tank

Capacity: 1800 litres (396 gallons).

Diameter: 1260mm (49½").
Height: 1600mm (63").
Cover: 750mm (29½") square.

Price £548.90    

BHS1215E 2150 litre Tank

Capacity: 2150 litres (473 gallons).

Diameter: 1260mm (49½").
Height: 2100mm (82½").
Cover diameter: 450mm (18").

Price £614.90    

BHS1518 3400 litre Tank

Capacity: 3400 litres (748 gallons).

Diameter: 1560mm (61½").
Height: 1900mm (75").
Cover: 1160mm (45½") by 750mm (29½").

Price £988.90    

BHS2021 6800 litre Tank

Diameter: 2150mm (85½").
Height: 2350mm (92½").
Length: 2150mm (85½").
Cover: 1160mm (45½") by 750mm (29½").

Price £1,538.90