1,000 Litre Slimline Rainwater Tank



1,000 Litre Rainwater Harvesting Tank Specification

  • Supplied as standard with a 1.5” Outlet (other options available)
  • Lid: 455 mm
  • Dimensions (mm): 1350 L x 760 W x 1300 H
  • Moulded in lifting handles to help installation of the tank
  • Colour: 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


1,000 Litre Slimline Rainwater Harvesting Tank for Domestic Systems

Enduramaxx’s 1,000 Litre Slimline Rainwater Tank is constructed from MDPE polyethene which is UV stabilised. This tank is a one-piece, seamless, rotationally moulded tank that guarantees strength, impacts resistance and durability and many years of use.

This slimline rainwater tank is designed to provide rainwater/grey water storage for a rainwater harvesting system allowing rainwater to be harvested, conserved and recycled at your convenience. These rain harvesting tanks can be used in many applications where mains water is not required or not available.

 Uses for the 1,000 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 non-potable applications such as toilet flushing, garden watering and washing clothes using a washing machine.

Why should I consider a rain water harvesting system?  

Water resources are under pressure in England & Wales as demand for water is rises due to the increase in the 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, factors that will influence this are the demand for non-potable water, the amount of rainwater that can be collected and whether the property is charged by volume of volume used.

Savings will be higher in commercial/industrial buildings and schools as these buildings having much larger roof areas and a much greater demand for non-potable water for applications such as flushing toilets.

Are there grants for rainwater harvesting?  

There are grants for rainwater harvesting which are available in regions of the country.

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 required to connecting to existing process pipework.

Do I need a leaf filter?

Rainwater filters are important to make the water used in any rainwater harvesting system and 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 as the water runs down to the bottom of the tank and fills the tank through the calmed inlet at the bottom of the tank.

This oxygenates the water in the tanks and helps prevents 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 1,000 litre rainwater harvesting tank is 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 available to deliver direct to site for installers to save double handling of these tanks. Where clients can’t offload the tank, we can offer Hiab deliveries which are priced upon request. Please view our installation guide here.

How big is a 1,000 Litre Rainwater Harvesting Tank?

Capacity  1,000 Litres 
Dimensions 1350mm L x
Height  1300mm 
Outlet  1.5″ standard male outlet with other options available 
Lid  455mm dia lid 

View Our Rainwater Harvesting Video here

Additional information

Dimensions 165 × 67 × 120 cm

Black, Dark Green, Blue

Rainwater Harvesting Calculator

Rainfall Calculator

Need help selecting which tank is right for you? Use our calculator below to make your selection easier!

Amount of Rain Harvested (litres):

Minimum Tank Size:

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

Enduramaxx 171310 1000 Litre Slimline Rainwater Potable Insulated Water Tank  Enduramaxx 171310 1000 Litre Slimline Rainwater Potable Insulated Water Tank

Main Menu