Clean & Grey Water Storage

These tanks provide a superb solution for:
- storing non-potable water for a toilet block
- capturing grey (shower & sink) water from washrooms.

Use these tanks when access to a mains water supply is not available or you need to capture grey water from showers and washrooms, for example.

If you don't have mains water on site and/or the water pressure is low, you will use an above ground tank water tank to store non-potable water brought to your site by a delivery vehicle tanker, for example.

In this case, we'll be able to advise you on suitable connections (a) for the water to be pumped into the tank from the delivery vehicle and (b) drain valves so that you can access that water, usually from a point near the base of the tank.

The water in non-potable tanks could be used:
- to flush toilets
- to provide water on constructions sites
- to mix cement and wash down vehicles and equipment
- to be sprayed for dust suppression
- as an extra resource in the event of a fire.

Capacities range from 2,500 to 30,000 litres (500 to 6,600 gallons) but if that's not enough, you can also link these tanks together to create additional volume.

These water tanks can be configured in may ways, with:
- fittings to get the water into the tank
- drain valves to allow pump connection / water removal when the tank is full
- breather valves and bolt down feet
- part-fill valves to allow tanks to be topped up with mains water when required
- liquid level sight glasses and linking kits...

If you're interested in using an Above Ground Storage Tank for any of the above applications or if you have any questions, please get in touch! You can also download our product and accessory sheets for even more detail.

Final note: non-potable water tanks could include a mixture of tankered water + harvested rainwater.

Technical Data

1250 Litre Above Ground Water Tank

The 1250 litre above ground tank is a practical and efficient solution for storing non-potable water across a range of small to medium-scale applications. Commonly used in agriculture, construction, and commercial settings, this tank is ideal for storing water for irrigation, dust suppression, livestock watering, machinery washing, or general site use where mains water is not required.

Manufactured from UV-stabilised high-density polyethylene (HDPE), the tank offers outstanding durability and resistance to impact, corrosion, and challenging weather conditions. Its compact footprint and robust ribbed structure make it a reliable choice for locations with limited space or access. The above-ground design enables fast, straightforward installation without the need for excavation, while optional pre-fitted outlets ensure easy connection to hoses or water systems.

Whether for temporary site use or part of a fixed setup, this 1250-litre tank delivers dependable, low-maintenance non-potable water storage wherever it’s needed most.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
1,250/275
Standard
1,200
1,245
35
4
455
No
2"
2500 Litre Above Ground Water Tank

Ideal for non-potable water storage on farms, construction sites, and commercial premises, the 2,500 litre above ground tank offers a reliable and versatile solution for various non-drinking water needs. Whether you're storing water for irrigation, pressure washing, livestock use, or dust suppression, this tank delivers dependable performance in a compact form.

Its mid-range capacity makes it especially suited for locations with limited space but regular demand for water. Manufactured from UV-stabilised, high-density polyethylene (HDPE), the tank is built to endure harsh outdoor conditions with excellent resistance to impact, weathering, and corrosion. The ribbed design reinforces structural strength, making it suitable for rugged environments.

Easy to install and maintain, the tank’s above-ground design eliminates the need for excavation, and optional factory-fitted outlets allow for simple connection to pumps, hoses, or gravity-fed systems. A practical and cost-effective choice for storing non-potable water where it's most needed.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
2,500/511
Standard
1,400
1,845
60
4
620
Yes
2"
5000 Litre Above Ground Water Tank

Designed to meet the demands of commercial, agricultural, and industrial sites, the 5,000 litre above ground tank is a robust and flexible storage solution for non-potable water. It’s ideal for holding water used in tasks such as crop irrigation, livestock watering, equipment cleaning, ground care, and dust control particularly in areas without access to a mains supply.

With a space-efficient footprint and generous capacity, this tank is a smart choice for sites needing regular water access without requiring potable quality. Manufactured from UV-stabilised high-density polyethylene (HDPE), it offers long-lasting durability and excellent resistance to impact, corrosion, and outdoor exposure. The ribbed construction adds strength, making it suitable for demanding site conditions.

Installation is straightforward thanks to its above ground format no digging or groundworks required. Optional pre-fitted outlets and fittings are available to simplify integration with pumps, hoses, or other water systems. Whether for temporary or long-term use, this tank delivers practical, low-maintenance water storage where you need it most.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
5,000/1,101
Standard
1,900
2,300
120
4
620
Yes
2"
5,000/1,101
Low Profile
2,600
1,370
140
4
620
Yes
2"
10,000 Litre Above Ground Water Tank

The 10,000 litre above ground tank provides a dependable solution for storing large volumes of non-potable water across commercial, agricultural, and industrial environments. Common applications include rainwater harvesting, irrigation, livestock watering, equipment cleaning, and dust suppression, especially on sites where access to a mains water supply is limited or unavailable.

Manufactured from UV-stabilised high-density polyethylene (HDPE), the tank is built to endure demanding outdoor use. Its durable ribbed construction improves structural integrity, offering high resistance to impact, corrosion, and extreme weather. With its generous capacity and space efficient footprint, it’s well-suited to high-demand operations that need reliable water on hand for non-drinking purposes.

Installation is quick and straightforward thanks to the above ground design, no excavation required. Optional pre-fitted outlets and fittings make it easy to integrate with hoses, pumps, or gravity-fed systems. Whether used as a long-term solution or for temporary site work, this tank delivers efficient, low-maintenance non-potable water storage when and where it’s needed.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
10,000/2,203
Standard
2,400
2,600
190
4
620
Yes
2"
10,000/2,203
Slimline
1,900
3,770
240
4
620
Yes
2"
10,000/2,203
Low Profile
2,600
2,290
240
4
620
No
2"
15,000 Litre Above Ground Water Tank

The 15,000 Litre above ground water tank is a reliable and flexible solution for storing large volumes of clean, potable water in commercial, agricultural, and industrial environments. Ideal for supplying drinking-quality water to event venues, construction sites, food and beverage operations, or remote locations without access to mains water, this high-capacity tank ensures a steady and safe water supply.

Manufactured from UV-stabilised high density polyethylene (HDPE), the tank is built for long-term durability with strong resistance to impact, corrosion, and extreme weather conditions. Its ribbed structure provides added strength and stability, making it suitable for heavy-duty use across a range of demanding settings. The above ground design enables quick and easy installation without the need for excavation, while optional pre-fitted outlets make it simple to connect to water distribution systems.

Whether used for temporary applications or permanent setups, the 15,000-litre potable water tank delivers dependable performance, minimal maintenance, and peace of mind wherever clean water is essential.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
15,000/3,304
Standard
2,400
3,720
320
4
620
Yes
2"
15,000/3,304
Low Profile
2,600
3,100
320
4
620
No
2"
20,000 Litre Above Ground Water Tank

The 20,000 Litre above ground tank provides a durable and adaptable solution for managing wastewater in medium to large scale operations. Tailored for industrial, agricultural and commercial settings, this tank is ideal for storing grey/black water and effluent waste. Its substantial capacity makes it a practical choice for areas where access to mains sewer systems is limited or unavailable.

Crafted from UV-stabilised high-density polyethylene (HDPE), this tank is engineered for long lasting performance, resisting corrosion, impact and harsh environmental conditions. The reinforced ribbed design adds to its structural strength, making it suitable for demanding applications. With its above ground configuration, installation is hassle-free, and optional pre-fitted access points make it easy to integrate with existing waste systems.

Whether for temporary operation or permanent installations, the 20,000 litre tank delivers exceptional capacity, reliability and minimal maintenance requirements.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
20,000/4,405
Standard
2,850
3,620
430
4
620
No
2"
25,000 Litre Above Ground Water Tank

The 25,000 Litre above ground potable water tank is a high capacity, heavy-duty storage solution for large-scale clean water requirements. Ideal for commercial, agricultural, and industrial use, it’s perfectly suited for delivering safe, drinking-quality water to event venues, construction compounds, food production facilities, or rural sites without access to a mains water supply.

Moulded from UV-stabilised high-density polyethylene (HDPE), the tank is built to endure. Its ribbed construction provides superior structural integrity, ensuring resistance to impact, corrosion, and harsh weather conditions. The above-ground configuration enables fast and hassle-free installation, with optional pre-fitted outlets for seamless integration into water supply systems.

Whether used as a temporary water source or part of a long-term setup, this 25,000-litre potable water tank offers a dependable, low-maintenance solution for storing and distributing clean water where it’s needed most.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
25,000/5,507
Slimline
2,700
4,720
530
4
620
Yes
2"
25,000/5,507
Low Profile
3,450
3,100
540
4
620
No
2"
30,000 Litre Above Ground Water Tank

The 30,000 litre above ground tank delivers a heavy-duty solution for storing large volumes of non-potable water in demanding industrial, agricultural, and commercial settings. Whether used for irrigation, washdown, equipment cleaning, or livestock watering, this high capacity tank is ideal for sites where a mains water connection is unavailable or impractical.

Constructed using rotationally moulded UV-stabilised high density polyethylene (HDPE), the tank features a reinforced ribbed design that enhances durability and provides excellent resistance to weathering, impact, and corrosion. Its substantial size and robust build make it well suited to high-demand applications across remote sites and operational yards.

Installation is quick and straightforward, with its above ground format requiring no groundworks. Optional factory-fitted outlets and access points allow easy integration with pumps, hose reels, or site water systems. Whether for short-term or permanent use, this 30,000 litre non potable water tank offers a reliable, low maintenance storage option for non-drinking water across a wide range of environments.

Volume
(litres/gallons)
Format
(S/SL/LP)*
Diameter
(mm)
Height
(mm)
Weight
(KGs)
Lifting
Points
Lid Size
(mm)
WRAS
Approved
Typical
Outlet
30,000/6,608
Standard
3,450
3,650
600
4
620
Yes
2"
  • S = Standard Tank, SL = Slimline Tank, LP = Low Profile Tank, Please note tank dimensions differ.
  • We use differing grades of plastic and vary the tank wall thickness to match the tank to your application.
  • Please note: tank sizes quoted are subject to a +/-3% variation as they expand and contract relative to temperature.
  • We reserve the right to amend the technical specification to improve the product without prior notification.

DOWNLOADS & LINKS

Technical Advantages

  • Made from a one-piece moulding using strong and durable plastic polymer (MDPE)
  • Robust, impact-resistant, long-lasting, UV-stabilised and rust free
  • Rotationally moulded in the UK using a heated, hollow mould filled with plastic polymer, guaranteeing consistent quality and dimensions
  • Cylindrical in shape with strengthening ribs
  • Lightweight plastic means manufacturing costs are less than their metal counterparts.
    The result is a product which is cheaper and easier to transport, and reduces your carbon footprint.
  • A range of volumes from 2500 to 30,000 litres (550 to 6600 gallons) and in Standard, Slimline and Low Profile shapes.
    Tanks can be linked together to extend capacity.
  • An extensive range of accessories to configure the tank(s) for your site / application
  • Built in lifting points - for use when empty
  • Flat base for stability
  • 620mm vented lid

MULTIPLE APPLICATIONS

  • Bulk water storage (e.g. flushing toilets, hand washing in welfare cabins)
  • Store and provide water on construction sites or civil engineering applications
  • Use the water to wash down vehicles and/or machinery
  • Use as ballast or dust suppression on construction sites or industrial premises
  • Civil engineering applications with mains water
  • Mains water simply isn't accessible*
  • Back-up emergency drink water supply*
  • Food industry*
  • Temporary water supply for events and festivals*
  • An extra resource in the unfortunate event of fire
* These applications only apply to Potable water storage tanks, i.e. they have been manufactured with materials and parts that are WRAS approved and conform with regulations for safe drinking water.

UpgradeS & CONFIGURABLE OPTIONS

  • Tank linking kits
  • Filling options - from ball cock float valves (water) to "up and over" pipework (pumped toilet waste)
  • Sight glass / level gauge options
  • Recommended venting options when filling/evacuating > 500 litres per minute
  • Bolt down feet for added security, especially on exposed sites
  • Rainwater harvesting kits
  • Bunded tanks for spill protection
  • Tank insulation - 13mm & 25mm

Warnings

  • Fresh water has a specific gravity (SG) close to 1. This means that 1 litre of water will effectively weigh 1 KG.
  • Our potable and non-potable tanks are therefore rated at SG1.
  • Any tank with heat-welded flanges / fittings will require a slurry/industrial tank
  • Consider bunded tanks to avoid spillages. Biggest bunded tank is 10,000 litres.
  • DELIVERY IMPLICATIONS OF LARGE TANKS
  • Delivery on a 44 foot articulated lorry
  • It is the customer’s responsibilty to offload
  • A HIAB truck may be required
  • Delivery is kerbside only - the delivery driver is not indemnified to install the product
  • Only lift or move when empty
  • PLEASE CONSULT OUR LITERATURE ON CORRECT INSTALLATION OF TANKS:
    PAY PARTICULAR ATTENTION TO THE BASE REQUIRED TO SUPPORT THE TANK WHEN FULL - WE RECOMMEND A CONCRETE BASE
  • Tank base should be a minimum of (600mm) (24") larger than the diameter of the tank and should have a minimum depth of:
    > 102mm (4") for tanks up to 2,500 litres
    > 152mm (6") for tanks 4,000 litres to 10,000 litres
    > 204mm (8") for tanks over 10,000 litres

PHOTO GALLERY

Vertical Waste and Water Tank. Easy to linkVertical Waste and Water Tank. Easy to linkVertical Waste and Water Tank. Easy to linkDraining option: tanks are typically drained, emptied or connected to pumps from fittings at the base. Available with a range of connector types, valves and sizes. Filling option: "up and over" pipework to safely fill tanks from the top. Pipework is secured to side of tank and typically terminates 4' / 120cms above ground for ease of connection.Venting option: it is best practice and extends tank life by ensuring tanks are vented to equalise pressures, especially during rapid emptying or filling.Linking option: tanks can be linked to increase capacity or for site-specific requirements. e.g. accept larger water deliveries or extend period between waste removal.Site glass option: external clear tube "cat and mouse" gauge shows the level of liquid inside tank using a ball and float system for easy monitoring.Anchoring option: bolt down feet anchor tank(s) to a solid base to prevent movement. e.g. on exposed sites.Rainwater harvesting option: safely capture rainwater from roofs with a range of three different filters, depending on roof area.Bunded option: a tank within a tank. For main tanks up to 10,000 litres, a larger external tank will catch any leaks and prevent an environmental spill.Insulating option: durable external foam finish in 13mm or 25mm thickness. Depiction of typica tank sizesBilkhead fittings for plastic tanksExpansion joints for bunded tank connectionsWelded tank flanges PN16Ball valves for emptying waste tanksLinking pipework and ball valves between large vertical tanksMushroom vents for pressure equalisation in large tanksBolt down feet for security on exposed sites