Underground Storage Tanks

Underground Storage Tanks

Underground Tanks – long lasting and safe

Used for storage of rain harvested water, fresh water and grey water
Ideal for domestic, industrial and agricultural use
Standard and heavy duty fittings with either 450mm or 180mm lids
Durable and safe below the ground storage tank, but not portable

Product Gallery

  • 600l


  • 1000l


  • 1750l


  • 2500l


  • 5000l from RotoTank


  • 6000l


  • 8000l


  • 12500l


Safe underground storage

Underground Storage Tanks are a key Liquid Storage Facility and are accessible via a manhole. They are stored below the ground for safety purposes and as a result are not portable once installed buried as an underground fixture.

Due to the storage tanks being underground the thickness and well as heavy duty access points allow for peace of mind. They come with an 8 year UV protection should your tank only be installed underground at a later stage and 5 year structural warranty on the extra heavy duty technology.

Bear following in mind when installing an underground RotoTank™ tank:
  • Base of tank must be positioned on solid, level grounding which is free of any protruding objects which could lead to puncturing the underground storage tank
  • Imperative to follow installation instructions
  • Weight and quality specifications are recorded for your benefit – ensure that you get the right product for the task at hand.
  • Avoid top and lateral loaded stresses. Reinforce top soil with beams where possible
  • Excavated hole must be of correct size and shape of the buried tank concerned
  • A RotoTank™ French drain is an optional addition to your assembly and to be used in conjunction with the septic/conservancy underground tank
U 600 lt
Liquid1 140 mm820 mm950 mm165 mm
U 1 000 lt
Liquid1 700 mm1 100 mm950 mm450 mm
U 1 750 lt
Liquid820 mm1 201 mm450 mm
U 2 500 lt
Liquid2 150 mm1 550 mm1 280 mm450 mm
U 5 000 lt
Liquid2 200 mm2 380 mm1 260 mm450 mm
U 6 000 lt
Liquid2 300 mm2 500 mm450 mm
U 8 000 lt
Liquid3 600 mm1 850 mm450 mm
U 12 500 lt
Liquid2 800 mm2 500 mm450 mm

Downloads: Information & Technical Specs

PDF Download

Horizontal Underground Storage Tank Tech Spec

PDF Download

Vertical Underground Storage Tank Tech Spec

PDF Download

8000L Underground Storage Tank Tech Spec

PDF Download

Installation Instructions