The Carat XXL underground tank has been specially developed for rainwater harvesting and for use as a retention cistern, firefighting water tank, process water tank and septic tank.

  • Flexibility and stability are perfectly combined
  • No need for heavy load transport on trucks up to the size of 76,000 ltrs
  • Secure investment thanks to the market leading 15-year warranty!
  • Lorry bearing up to 40 t
  • Groundwater-stable
  • Dome opening with stainless steel profile for precision fit and secure mounting
  • Lighter than equal tank made of concrete or steel
  • Numerous DN 100/150/200 connection surfaces
  • Optional DN 300 connection
  • Optional second tank dome
  • Up to 122,000 litres on request

Sizing

Length [mm]Width [mm]Height [mm]Weight [kg]Volume [l]order no.add to enquiry
25225250031603775102000380344
2374025003160326596000380343
2284025003160343092000380342
2135525003160322086000380341
2045525003160308582000380340
1897025003160287576000380317
1807025003160274072000380316
1658525003160253066000380315
1524025003160239562000380314
1420025003160218556000380313
1330025003160205052000380312
1181525003160184046000380311
1091525003160170542000380310
943025003160149536000380309
853025003160136032000380308
704525003160115026000380302
620025003160100022000380307
45302500316075016000380301

calculated size Request for information

Technical details

Installation

max. earth covering [mm] (without groundwater, vehicle loading) 1500

Accessibility

max. axle load [t] 8

Groundwater installation

Earth covering with groundwater installation [mm] 800 - 1500

General

Warranty period (years) 30

Accessory