400 Litre Squat Rainwater Harvesting Tank

Does your project need to meet Fluid Category 5 regulations?

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

400 Litre Rainwater Harvesting Tank for Agricultural & Commercial Systems

Enduramaxx’s 400 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.

This round 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 water tanks can be used in many domestic and commercial applications where mains water is not available.

 Uses for the 400 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 and washing.

Are there grants for rainwater harvesting?  

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

Do I need a leaf filter for my rainwater tank?

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.

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 available to deliver direct to site for installers to save double handling of rainwater tanks, drinking water tanks, open-top tanks, slimline water tanks and underground tanks. 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 400 Litre Rainwater Harvesting Tank?

View Our Rainwater Harvesting Video here