Harcostar Magnum Water Butt - 350 Litre

The Harcostar 350 Litre Magnum Water Butt is the perfect solution for collecting and storing large...

Best current price£139.95from Amazon

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AmazonHarcostar Green 350 Litre Magnum Water Butt
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B&Q - Harcostar 350 Litre Magnum Water Butt
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Product Information

Full details

The Harcostar 350 Litre Magnum Water Butt is an ideal solution for eco-conscious gardeners seeking a high-capacity rainwater harvesting system to manage water usage for lawns and plants. Featuring a robust 350-litre capacity and a child-safe lockable lid, it provides significant storage space for outdoor tasks, though it requires a solid, level foundation to ensure long-term stability and effective weight distribution.

All features

BrandHarcostar

Extended Product Information

FAQs

Can I place the water butt on a lawn?

No, you must place the butt on a solid, level, and flat surface. Placing it on soil or grass can lead to uneven weight distribution and structural failure.

Is the tap included with the unit?

Yes, the water butt comes with a pre-drilled tap installed for immediate use.

How much does the unit weigh when full?

When full, the water butt holds 350 litres of water, which weighs approximately 350 kilograms (plus the weight of the plastic container).

What is the total height of the water butt?

The total height of the unit is 108 cm.

Is the material weather-resistant?

Yes, it is designed for all-weather durability, though it is recommended to drain it before severe winter freezes to prevent damage.

Troubleshooting

The water butt is leaning or unstable.

Ensure the base is perfectly level; remove the unit and create a solid, flat foundation using concrete slabs or pavers.

Water is leaking from the tap connection.

Check that the tap is tightened correctly and ensure the internal washer is seated flat against the wall of the butt.

Water flow from the tap is slow.

Check for debris inside the butt that may be blocking the tap inlet; flush the system if necessary.

Pros and Cons

Pros

  • High storage capacity suitable for large garden requirements
  • Environmentally friendly construction using recycled plastic
  • Safety-focused lid design
  • Convenient tap placement for ergonomic use

Cons

  • Requires a perfectly flat and stable surface
  • Cannot be placed directly on soil or grass due to weight distribution
  • High weight when full requires sturdy positioning

Setup, Compatibility & Care

To ensure proper function, place the water butt on a firm, level surface like patio slabs, concrete, or decking; do not place the butt on soft soil or grass as the weight of 350 litres of water (approximately 350 kg) will cause it to sink or tilt. Connect the unit to your downpipe using a standard rain diverter kit. For routine care, periodically check the tap connection for leaks and clear the lid of debris to ensure the water remains clean. During winter, if you expect freezing temperatures, it is advisable to drain the water butt to prevent the plastic from cracking under ice expansion.

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