Platin Underground Water Tank 1500-7500 Litres

Delivery: 7-10 working days

£1,052.48£3,119.87 inc VAT

Platin Shallow Dig range of underground tanks are suitable for use with the following applications:

  • Non-potable water
  • Wastewater
  • Raw sewage
  • Effluent
  • Silage
  • Slurry
  • Rainwater
  • Blue water
  • Cesspool

Description (click to expand to read)


PLATIN tanks are supplied fully assembled.

PLATIN 1500L-7500L Underground Water Tank comprising of:

  • PLATIN Shallow Dig tank 1500-7500 litres, with dome & sealing set DN 100
  • PLATIN telescopic dome shaft Mini green, with PE-lid, for pedestrian loading or PP cover suitable for vehicle loading
  • PLATIN Shallow dig tank profile reduces dig depth; potentially avoiding high-ground water and poor ground conditions that may be found at lower depths.
  • Multiple tanks can be connected to increase storage capacity if required, with low-level connections with sealing set DN 100.


Images are for illustrative purposes only, there is a possibility that certain products may have been upgraded or replaced with equivalent alternatives.

What’s included

Supplied by Graf

  • Underground water tank & dome (choice of tanks available, sizes vary according to application type)
  • The pedestrian telescopic lid as standard, 3.5 tonnes vehicle loading adjustable lid available on request
  • Extension pieces (risers) as required (extra over items)

Supplied by Others

  • Inlet/outlet drainage pipework
  • Connecting pipework between multiple tank systems

System Benefits

  • Simple & quick to install
  • High-quality, robust, polyethylene tank & related accessories for use with a wide range of media
  • Adjustable lid height for flush alignment to ground level
  • The pedestrian telescopic lid as standard, 3.5 tonnes vehicle loading adjustable lid available on request
  • Fully compatible tank domes, risers & lids to deal with invert-level requirements
  • All tank dome, riser & lid connections include high-quality thick rubber gaskets for watertight seals
  • Granular or concrete backfill options, subject to ground conditions & groundwater level

Product Dimensions, Levels & Weights

Platin Tank Dimensions & Weights (1500L – 7500L)

Rain Water Flat Tank 1500L Platin | Download
Rain Water Flat Tank 3000L Platin | Download
Rain Water Flat Tank 5000L Platin | Download
Rain Water Flat Tank 7500L Platin | Download

Platin Tank Levels & Invert Levels

Platin Tank Levels | Download

Mini & Maxi Lid Dimensions

PE Mini Lid (Pedestrian Loading 371010) | Download

PE Maxi Lid (Pedestrian Loading 371011) | Download

Vehicle Loading Lid (371052) | Download

Extension piece options

Extension Sleeve (371003) | Download

Extension Sleeve (371015) 1000mm | Download


Platin Rainwater Shallow Dig Tank | Download


Specification Sheet | Download

Installation & Commissioning

This informative guide covers the following:

  • Loading information
  • Tank coverage heights
  • Excavation dimensions
  • Technical & general data
  • Installation & Assembly

Read the Guide | Download

Service Provider Support

Graf UK has a national service provider network of contractors who can offer various services including the installation of our tank systems.

Coming Soon: New UK map with the service provider/installer contact details.

Delivery Information

Please note the following regarding Graf UK deliveries

We’re still delivering to our customers safely via our own delivery vehicles & drivers in the main, using external hauliers when required.


This gives us much greater control & flexibility over our deliveries.


All orders are typically delivered within 5-7 working days from receipt of order, however during this time due to UK-wide disruption, some deliveries may take a little longer and we would still aim to deliver within 10 days.

• Delivery lead time is 5-7 working days on all orders unless otherwise advised.
• Price includes delivery to mainland UK.
• Please check for deliveries into Cornwall, Mid & Northern Scotland & Isles as additional delivery charges may be applicable.
• We cannot currently provide a tracking number for all orders but can accept customer enquiries by phone.
• Off-loading by the customer unless agreed otherwise.
• Tanks are generally strapped to a pallet for forklift off-load, slings can also be used.
• Please advise if there is restricted access to the site or special delivery instructions.