Saphir 600-1200L Underground Water Tank

£587.38£957.67 inc VAT

Compact and multi-functional underground storage tank.


FREE Delivery by Monday, 03 June, 2024.


Protecting you



Versatile Storage Options: The Saphir Tank is expertly designed for underground storage of a wide array of materials, including non-potable water, wastewater, raw sewage, effluent, silage, slurry, rainwater, grey water, blue water, and even as a pump chamber. Its flexibility makes it an essential asset for various residential, agricultural, or industrial applications, streamlining operations and ensuring efficient waste management.

Available in Multiple Sizes: The Saphir Tank includes 600L, 900L, and 1200L to accommodate different capacity needs. This range allows users to select the perfect size based on their specific storage requirements, ensuring that small-scale and more substantial needs are precisely met.

Ready-to-Use Upon Delivery: The Saphir Tanks are supplied fully assembled, significantly reducing the complexity and time involved in installation. This preassembly ensures that each tank is set up correctly, eliminating potential issues related to improper assembly and speeding up the overall setup process.

Optional Vehicle Loading Lid: Recognising that installation sites can vary greatly, the Saphir Tank offers an optional vehicle loading lid. This addition is ideal for installations under driveways or in areas where space is at a premium, allowing the tank to withstand the weight of vehicle traffic. It provides practicality without sacrificing the integrity or functionality of the tank, making it a versatile choice for urban environments.

Choose the Saphir Tank for your underground storage needs if you’re looking for a reliable, adaptable, and space-efficient solution. Whether you need to manage wastewater, store rainwater, or set up a pump chamber, the Saphir Tank offers the durability, flexibility, and capacity to handle diverse storage challenges.

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 (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

System Benefits

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

Product Dimensions, Levels & Weights

Saphir Underground Water Tank Dimensions & Weights (600L – 1200L)

Saphir Tank Range Guide | 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


Saphir Tank Range Guide | Download

Installation & Commissioning

This informative guide covers the following:

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

Saphir Tank Range 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.