Magnum Rain Water Butt - 350L - Straights Manufacturing

The Magnum 350 litre rain barrel provides a large capacity storage solution for harvesting rainwat...

Best current price£130.00from Water Butts Direct

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Water Butts DirectStraights Manufacturing 350L Magnum Rain Barrel Water Butt
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£130.00
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B&Q - 350L Green Recycled Plastic Magnum Rain Water Butt With Harcostar Diverter Kit & Tap
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Product Information

Full details

The Magnum 350L Rain Water Butt is designed for eco-conscious gardeners looking to harvest significant amounts of rainwater to reduce dependency on mains water. This high-capacity storage unit excels in durability and ease of use, featuring an automatic diverter system that prevents overflow. While its substantial 350-litre capacity provides an excellent water reserve, users should ensure they have a stable, level surface capable of supporting over 350kg of weight when the unit is fully filled.

All features

Model Part Number5012812136001
BrandStraights Manufacturing

Extended Product Information

FAQs

Can this be used with square downpipes?

Yes, the Magnum 350L is designed to be compatible with most standard round and square downpipes.

How much does it weigh when full?

When full, the barrel holds 350 litres, which weighs approximately 350kg, plus the weight of the unit itself.

Do I need to buy extra parts to connect it to the downpipe?

No, the unit comes with a Harcostar rain trap diverter kit designed for easy connection.

Is the lid secure for children?

Yes, the barrel features a spring-operated child-safe lid to ensure safety.

Should I empty the barrel in winter?

It is recommended to drain the barrel during winter to prevent damage caused by water freezing and expanding.

Troubleshooting

Water is not entering the barrel

Check that the diverter is properly aligned with the downpipe and clear of debris or leaf buildup.

Leaking around the tap

Ensure the tap is screwed on tightly and that the rubber washer is seated correctly against the barrel wall.

Barrel is overflowing

Verify that the diverter is set to the correct height and that the overflow pipe is not blocked.

Pros and Cons

Pros

  • Significant 350L storage volume reduces water bills
  • Automatic overflow protection prevents water damage
  • Robust build quality for long-term outdoor reliability
  • Compatible with both round and square downpipes
  • Secure child-safe lid design

Cons

  • Requires a very stable and level base
  • Heavy weight when full (requires solid ground)
  • Significant space requirement due to 78cm diameter

Setup, Compatibility & Care

Setup: Choose a flat, solid, and level area near an existing downpipe. Because a full barrel weighs upwards of 350kg, avoid placing it on soft soil or grass that could shift. Use the provided Harcostar diverter kit to cut into your downpipe at the appropriate height.

Compatibility: This unit works with standard round and square downpipe profiles. Ensure you have the necessary tools—such as a hacksaw for the downpipe and a drill for the diverter connection—before starting installation.

Care: Periodically check the diverter for debris, such as leaves or moss, that might obstruct water flow. During winter months in freezing climates, it is recommended to drain the barrel completely to prevent ice expansion from damaging the plastic shell.

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