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Showing 49 - 72 of 150 products

Showing 49 - 72 of 150 products
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3500 Litre Underground Rainwater Harvesting System - Garden Irrigation3500 Litre Underground Rainwater Harvesting System - Garden Irrigation
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3500 Litre Underground Rainwater Harvesting Tank - Home + Garden3500 Litre Underground Rainwater Harvesting Tank - Home + Garden
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3750 Litre GRAF CARAT Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)3750 Litre GRAF CARAT Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)
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3750 Litre GRAF CARAT Direct Underground Rainwater Harvesting System (Home & Garden)3750 Litre GRAF CARAT Direct Underground Rainwater Harvesting System (Home & Garden)
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3900 Litre Water Tank3900 Litre Rain Water Tank
3900 Litre Rain Water Tank
Sale price£750.00 exc. VAT
Enduramaxx 4000 Litre Rainwater Tank - BlackEnduramaxx 4000 Litre Rainwater Tank - Natural
Enduramaxx 4000 Litre Rainwater Tank
Sale price£645.00 exc. VAT
Enduramaxx 4000 Litre Rainwater Tank - Small Footprint - BlackEnduramaxx 4000 Litre Rainwater Tank - Small Footprint - Natural
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4300 Litre Water Tank4300 Litre Rain Water Tank
4300 Litre Rain Water Tank
Sale price£845.00 exc. VAT
FREE Delivery*Save £678.00
Atlantis 4400 Litre Underground Rainwater Harvesting System - Garden IrrigationAtlantis 4400 Litre Underground Rainwater Harvesting System - Garden Irrigation
Atlantis 4400 Litre Underground Rainwater Harvesting System - Garden Irrigation
Sale price£2,294.00 Regular price£3,430.80 exc. VAT
FREE Delivery*Save £434.40
Atlantis 4400 Litre Underground Rainwater Harvesting System - Home & Garden IrrigationAtlantis 4400 Litre Underground Rainwater Harvesting System - Home & Garden Irrigation
Enduramaxx 4500 Litre Rainwater Tank - BlackEnduramaxx 4500 Litre Rainwater Tank - Natural
Enduramaxx 4500 Litre Rainwater Tank
Sale price£670.00 exc. VAT
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4500 Litre Water Tank4500 Litre Rain Water Tank
4500 Litre Rain Water Tank
Sale price£850.00 exc. VAT
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4800 Litre GRAF CARAT Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)4800 Litre GRAF CARAT Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)
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4800 Litre GRAF CARAT Direct Underground Rainwater Harvesting System (Home & Garden)4800 Litre GRAF CARAT Direct Underground Rainwater Harvesting System (Home & Garden)
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5000 Litres Rainwater Harvesting System5000 Litres Rainwater Harvesting System
5000 Litres Rainwater Harvesting System
Sale price£1,450.00 exc. VAT
FREE 2" Isolation Valve*
Enduramaxx 5000 Litre Rainwater Tank - BlackEnduramaxx 5000 Litre Rainwater Tank - Natural
Enduramaxx 5000 Litre Rainwater Tank
Sale price£710.00 exc. VAT
FREE 2" Isolation Valve*
Enduramaxx 5000 Litre Rainwater Tank - Low Profile - BlackEnduramaxx 5000 Litre Rainwater Tank - Low Profile - Natural
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5000 Litre Underground Rainwater Harvesting System - Garden Irrigation5000 Litre Underground Rainwater Harvesting System - Garden Irrigation
FREE Delivery*
5000 Litre Underground Rainwater Harvesting Tank - Home + Garden5000 Litre Underground Rainwater Harvesting Tank - Home + Garden
Enduramaxx 5000 Litre Underground Rain Water Tank
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5000 Litre GRAF PLATIN Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)5000 Litre GRAF PLATIN Garden Comfort Underground Rainwater Harvesting System (Garden Irrigation)
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5000 Litre GRAF PLATIN AA-Silento Underground Rainwater Harvesting System5000 Litre GRAF PLATIN AA-Silento Underground Rainwater Harvesting System
5000 Litre GRAF PLATIN AA-Silento Underground Rainwater Harvesting System
Sale price£3,412.00 Regular price£4,920.00 exc. VAT
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5000 Litre GRAF PLATIN Direct Underground Rainwater Harvesting System (Home & Garden)5000 Litre GRAF PLATIN Direct Underground Rainwater Harvesting System (Home & Garden)
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5100 Litre Water Tank5100 Litre Rain Water Tank
5100 Litre Rain Water Tank
Sale price£895.00 exc. VAT
A general rule of thumb is to look at your roof area and average local rainfall. For a standard garden, a 1,000L to 2,500L tank is usually sufficient. For commercial use, we recommend a capacity that can store at least 18 days of your average daily water requirement.
While both collect rain, a harvesting tank is typically larger, made of thicker industrial-grade plastic, and often features specialized 'calmed inlets' and overflow siphons to improve water quality and allow for pump integration.
Yes, a filter is essential. It prevents leaves, moss, and debris from entering the tank, which keeps the water clear and prevents the buildup of sludge that can smell or damage pumps.
Yes, but this requires a more advanced 'Header Tank' or 'Direct Feed' system with a pump and a mains-water backup to ensure you still have water when the tank is empty. It also requires dedicated pipework clearly marked as non-potable.
Our tanks are made from opaque, UV-stabilized plastic which blocks sunlight. This prevents algae growth. Combined with a good pre-tank filter, the water will stay fresh and clean for long periods.
The tank must be placed on a flat, level, and fully supported base—usually a 100mm-150mm thick concrete pad. This is vital because a full 5,000L tank weighs 5 tonnes; an uneven base could cause the tank to split.
Absolutely. You can 'daisy-chain' tanks at the base using a linking kit. This allows them to fill and empty at the same level, effectively increasing your total storage capacity.
If you only want to fill a watering can, a gravity-fed tap is fine. However, if you want to use a hosepipe, sprinkler, or supply water to a building, you will need a submersible or external surface pump.