30,000 Litre Rainwater Tank

From £4,380.00 inc. VAT
£3,650.00 exc. VAT


30,000 Litre Rainwater Harvesting Tank Specification

  • Supplied as standard with a 2” Outlet 177920 (other options available)
  • Lid: 620 mm
  • Dimensions (mm): 3450 dia x 3650 h
  • Colours: Available in black, boat blue or dark green colour
  • 100% rust proof
  • UK manufactured
  • 10 Year guarantee

Does your project need to meet Fluid Category 5 regulations?

Please note: Tank sizes quoted are subject to a +/- 3% variation.

SKU: 172160-RH Category:

30,000 Litre Rainwater Harvesting Tank

Enduramaxx’s 30,000 Litre Rainwater Tank is constructed from the MDPE polyethene which is UV stabilised. This rain harvesting tank is a one-piece, seamless, rotationally moulded tank that guarantees strength, impacts resistance and durability and many years of use.

Water Tanks for Agricultural & Commercial Rainwater Systems

This high quality, round 30,000 litre water tank is a rainwater/greywater storage tank for a rainwater harvesting system. This medium density polyethene tank allows rainwater to be harvested, conserved and recycled at your convenience. These rainwater tanks can be used in many domestic and commercial applications where mains water is not available.

Uses for the 30,000 Litre Rainwater Harvesting Tank

  • Landscape watering for parks and recreational purposes
  • Horticultural and Market Garden applications
  • Cost-effective watering systems for groundskeepers and sporting stadia
  • Toilet flushing in industrial, commercial, hospital or school environments
  • Equine and agricultural establishments
  • Irrigation and/or wash-down facilities
  • Rainwater, being non-chlorinated, is better for plants and gardens
  • Civil engineering applications where mains water is unavailable
  • Agricultural tank and farm sprayer tank
  • Crop sprayer tank
  • Seawater storage tanks for aquariums and sea life centres

Rainwater Harvesting FAQ’s  

What is rainwater harvesting?  

Rainwater harvesting is the collection of rainwater from the surface or surfaces upon which it falls. This water would otherwise have gone into the drainage system. Once collected and stored, the rainwater can be used for toilet flushing, garden watering and washing clothes using a washing machine.

Why should I consider a rainwater harvesting system?  

Water resources are under pressure in England & Wales as demand for water is rising. as a result of population, changes in lifestyles and a changing climate.

What savings can I achieve using a rainwater harvesting system?  

Any rainwater harvesting system will reduce your dependence on the mains water supply. Potential savings should be assessed on an individual basis as there are many factors that will influence this. The demand for non-potable water, the amount of rainwater that can be collected, and whether the property is charged by volume used.

Savings will be higher in commercial/industrial buildings and schools as these buildings have much larger roof areas. Non-potable water for flushing toilets and washing means payback on these systems can be recovered in quicker timescales.

Are there grants for rainwater harvesting?  

There are grants for rainwater harvesting which are available in regions of the country. These grants may help towards the installation costs of water storage tanks.

What outlets are fitted to these plastic water tanks?

The rainwater tank is fitted as standard with a BSP outlet. For commercial installations modifications including liquid level sensor assemblies, fill pipes, inlets, outlets or PN16 flanges are available to connect to existing process pipework.

Do I need a leaf filter for my rainwater tank?

Rainwater filters are important to make the water used in any rainwater harvesting system. These are used to filter debris from the rainwater as it flows from the collection roof before it enters the storage tank. Calmed inlets are used as part of the filter system. The water runs down through a pipe to the bottom of the tank.

This oxygenates the water in the tanks and helps prevent it from stagnating. When the tank is full the overflow siphon diverts the excess water to a drain or soakaway.   Our rainwater filters can be viewed here for home and garden water butts and tanks and commercial and agricultural rainwater tanks.

Delivery of Your Rainwater Tank  

Our rainwater harvesting tanks are manufactured at our factory in Lincolnshire along with our potable water tanks and WRAS approved tanks. Most of these tanks for storing water are stocked for collection or fast delivery throughout the UK including our underground rainwater harvesting tanks range.

We are able to deliver our rainwater, drinking water, slimline water tanks and underground tanks direct to the site to avoid double handling. Where clients can’t offload the tank, we can offer Hiab deliveries which are priced upon request. Please view our installation guide for our round water tanks here.

How big is a 30,000 Litre Rainwater Harvesting Tank?

Capacity 30,000 Litres 
Diameter 3450mm 
Height 3650mm 
Outlet 2″ standard male outlet with other options available 
Lid 620mm dia lid 

View Our Rainwater Harvesting Video here

30,000-litre water tank – FAQ’s

30,000-litre water tank – FAQ’s – frequently asked questions on why buy an Enduramaxx 30,000-litre water tank (6600 gallons) 30m3.   This tank is a popular tank for potable drinking water and rainwater harvesting – for construction, industrial and agricultural water storage.  Following is a list of frequently asked questions for these tanks.

How big is a 30,000 Litre Water Tank?

This 30000-litre tall water tank has a diameter of 3.45m, and a total height of 3.6m with 4 flat areas around the top of the tank to mount inlets and overflows too.

What size lid is on these 30000 Litre Water Tanks?

As standard these tanks have a 620mm dia plastic screw lid.  For potable water, these tanks have a non-vented to prevent the ingress of dust and insects, whereas a rainwater or sprayer tank has a vented lid.

How is a 30000-litre tank delivered?

The 30000-litre water tank is generally delivered on a small truck or an artic, a bin size lorry as standard or larger.  If you require a smaller vehicle, specific day or time for delivery, please contact us to discuss.

Is it possible to get larger outlets?

Yes, larger BSP outlets and flanged connections are available, see more details here or contact us to discuss

Can I get a FORS or Hiab offload?

Yes a FORs and hiab offload is available upon request, please contact us to discuss

What base do 30000-litre tanks need to sit on?

It is very important that tanks are installed on a surface that is smooth, level, firm and supports the tank completely.  A reinforced concrete base is the best solution and be sure to secure tanks and stands   We recommend that your tank base is a minimum of 600mm (24”) larger than the dimensions of the tank and has 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

Additional information


Black, Dark Green, Blue, Natural

Capacity (Litres)

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Assume the tank can fill 3 times per year (Depends on rainfall and usage patterns)

172260-30000L-VERTICAL  172260-30000L-VERTICAL

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