The Importance of Rainwater Harvesting in the UK
With changing weather patterns and increasing water scarcity concerns, rainwater harvesting has become a practical solution for homeowners and businesses alike. In the UK, where rainfall is relatively abundant yet unevenly distributed, collecting rainwater helps reduce dependence on municipal supplies while addressing challenges like:
- Seasonal water shortages in summer months
- High water bills for garden irrigation
- Stormwater runoff management in urban areas
- Reducing strain on ageing water infrastructure
Modern rainwater harvesting systems can provide 30-50% of a household’s non-potable water needs when properly designed.
Introducing SBM Gold Water Tanks: Features and Benefits
SBM Gold water tanks are designed specifically for rainwater storage applications, with several engineering advantages:
| Feature | Benefit |
|---|---|
| UV-stabilised polyethylene | Resists algae growth and material degradation from sunlight exposure |
| Food-grade materials | Safe for storing water used in gardens and for cleaning purposes |
| Integrated filtration points | Allows easy connection to pre-filters to remove leaves and debris |
| Modular design | Available in capacities from 1,000 to 10,000 litres to suit different roof areas |
The tanks maintain water quality through dark colours that limit light penetration and tapered bottoms that prevent sediment accumulation.
How SBM Gold Tanks Enhance Rainwater Collection
Compared to traditional concrete or metal tanks, polyethylene rainwater tanks offer several collection advantages:
- Lighter weight: Easier to install without heavy machinery
- Corrosion resistance: No rust or lime leaching issues
- Thermal stability: Maintains cooler water temperatures in summer
- Customisable: Can be linked in series for increased capacity
For optimal performance, tanks should be placed on a level, stable base at least 15cm above ground to allow tap access and prevent surface water ingress.
Installing Your SBM Gold Water Tank: A Step-by-Step Guide
- Site selection: Choose a shaded spot near downpipes, avoiding tree roots
- Base preparation: Create a level platform of packed crusher dust or concrete
- Gutter modification: Install leaf guards and first-flush diverters
- Tank placement: Position with inlet aligned to downpipe
- Pipe connection: Use flexible PVC piping with backflow prevention
- Overflow setup: Direct excess water away from foundations
- Pump installation: For pressured systems if needed
Maintenance Tips for Long-Lasting Performance
With simple biannual checks, SBM Gold water tanks can provide 10-15 years of reliable service:
- Inspect and clean leaf filters before monsoon season
- Check for sediments annually and flush if needed
- Examine pipe connections for leaks or blockages
- Keep vegetation trimmed back from the tank
- Consider insect screens on overflow outlets
Never use harsh chemicals or pressure washers when cleaning – mild soap and water suffices.
Calculating Your Rainwater Harvesting Potential
Use this simplified formula to estimate collection capacity:
Annual rainwater (litres) = Roof area (m²) × Rainfall (mm) × Collection efficiency (0.8-0.9)
For example, installing a 2000-litre SBM Gold tank would be suitable for:
- 50m² roof in London (600mm annual rain): ~24,000 litres potential
- 80m² roof in Manchester (900mm annual rain): ~57,600 litres potential
Undersized tanks lead to overflow waste, while oversized tanks may stagnate.
Frequently Asked Questions About SBM Gold Tanks
Are the tanks safe for drinking water?
While made from food-grade materials, rainwater tanks typically require additional filtration and treatment for potable use according to UK regulations.
Can the tanks freeze in winter?
The polyethylene construction withstands freezing, but pipes should be insulated and tanks kept no more than 80% full in freezing conditions.
Do I need planning permission?
Most domestic rainwater tanks under 3,500 litres don’t require permission, but check local exceptions for listed buildings or conservation areas.
