🛡️ Energy Guard 500M GeoBubble Solar Cover – Selective Transmission
The Ultimate Solution for Algae-Prone Pools That Still Need Heat
Tired of fighting green water? This intelligent solar cover blocks algae-causing light while still heating your pool – saving you hours of maintenance and hundreds in chemicals.
💰 What This Cover Could Save You Annually*
For an average 4m x 8m pool:
| Savings Category | Annual Reduction | Your Savings* |
|---|---|---|
| Heating Costs | Up to 70% less energy | £350-£700/year |
| Water Loss | 32,000 litres prevented | £80-£120/year |
| Chemicals | Up to 30% reduction | £60-£150/year |
| Electricity | Up to 7,000 kWh saved | £280-£560/year |
| Time Spent Cleaning | 75% less debris | Priceless |
Total Potential Annual Savings: £770-£1,530*
*Savings based on average UK energy rates (£0.08-0.08/kWh), water rates, and typical pool heating season of 6 months. Individual results vary based on pool size, location, climate, and usage patterns.
🌟 Why Energy Guard Is Different from Standard Solar Covers
The Selective Transmission Advantage
Most pool owners face a frustrating dilemma: solar covers heat your pool, but they can also create perfect conditions for algae growth by letting all light through.
The Energy Guard 500M solves this with patented selective transmission technology:
✅ Dark coating blocks visible light → Starves algae of the light spectrum it needs to grow
✅ Still allows UV rays through → Heats your pool water by up to 8°C
✅ 500M thickness → Superior heat retention compared to thinner 400M covers
✅ GeoBubble technology → Lasts 25% longer than standard bubble covers
The result? A warmer pool with crystal-clear water and far less chemical maintenance.
🎯 Perfect For Pools That Struggle With:
- ❌ Recurring algae blooms (especially in shaded areas)
- ❌ Green water despite proper chemical balance
- ❌ High chlorine consumption fighting algae
- ❌ Pools surrounded by trees or organic debris
- ❌ Warm climates where algae thrives
- ❌ Outdoor pools without full sun exposure
If you’ve said “yes” to any of these, the Energy Guard is specifically designed for your pool.
🔬 How Selective Transmission Technology Works
Traditional clear or blue solar covers let all light frequencies pass through, including the wavelengths algae uses for photosynthesis. This can actually accelerate algae growth in susceptible pools.
Energy Guard’s intelligent dark coating:
- Blocks visible light spectrum (400-700nm) – The wavelengths algae needs to grow
- Transmits infrared and UV rays – The wavelengths that heat water
- Creates an inhospitable environment – Algae can’t photosynthesize without light
- Maintains water temperature – Still provides solar heating benefits
Think of it as sunglasses for your pool – blocking harmful rays while letting the beneficial ones through.
📊 Energy Guard vs. Other Solar Covers
| Feature | Energy Guard 500M | Clear Solar Cover | Blue Solar Cover | No Cover |
|---|---|---|---|---|
| Algae Prevention | ✅ Excellent | ❌ Poor | ⚠️ Moderate | ❌ Poor |
| Heat Retention | ✅ Excellent (500M) | ✅ Excellent | ✅ Good | ❌ None |
| Solar Heating | ✅ Good (UV transmission) | ✅ Excellent | ⚠️ Moderate | ❌ None |
| Chemical Savings | ✅ Up to 30% | ⚠️ 15-20% | ⚠️ 15-20% | ❌ None |
| Evaporation Control | ✅ Up to 98% | ✅ Up to 98% | ✅ Up to 98% | ❌ None |
| Durability | ✅ GeoBubble 25% longer | ⚠️ Standard | ⚠️ Standard | N/A |
| Best For | Algae-prone pools | Maximum heating | General use | N/A |
💡 Real-World Scenario: The True Cost of Algae
Without Energy Guard:
- Weekly shock treatment: £8-£12 per week × 24 weeks = £192-£288/season
- Extra chlorine: £40-£60/season
- Algaecide treatments: £30-£50/season
- Water testing and rebalancing time: 4-6 hours/month
- Potential drain and refill: £200-£400 (if algae bloom severe)
With Energy Guard:
- Preventative approach = 70-80% reduction in algae-related costs
- Estimated savings: £200-£350/season on chemicals alone
- Time savings: Minimal algae = minimal scrubbing and rebalancing
The cover typically pays for itself within one season for pools with recurring algae issues.
🏊 Technical Specifications
GeoBubble Technology Benefits
- Interconnected bubble design – Distributes stress evenly, preventing premature failure
- Rounded corners – Eliminates thin points that tear easily
- Thicker material junctions – 50% more material at stress points
- Result: 25% longer lifespan than traditional bubble covers
Cover Specifications
- Thickness: 500 microns (0.5mm)
- Material: UV-stabilized polyethylene with selective transmission coating
- Bubble side: Faces down toward water for optimal heat transfer
- Top surface: Dark coating blocks light penetration
- Temperature increase: Up to 8°C in optimal conditions*
- Heat loss reduction: Up to 75%*
- Evaporation reduction: 90-98%*
*Results depend on pool size, climate, sun exposure, and existing pool temperature. Covers work best in conjunction with heat pumps or solar heating systems.
📐 Available Sizes & Custom Options
Standard Sizes Available:
- 10ft × 20ft
- 12ft × 24ft
- 13ft × 27ft
- 14ft × 28ft
- 14ft × 30ft
- 15ft × 30ft
- 16ft × 32ft
- 16ft × 36ft
- 16ft × 38ft
- 17ft × 33ft
- 18ft × 36ft
- 20ft × 40ft
🎯 Need a Custom Size?
All our covers are made to order to ensure a perfect fit. Non-standard sizes available – simply use our solar cover calculator or contact our team for a quote.
Pro Tip: For maximum effectiveness, your cover should overlap your pool edge by approximately 15-30cm on all sides to prevent heat loss and debris entry.
✅ What You Get With Energy Guard
Included Benefits:
- Made-to-measure quality – Each cover manufactured to your exact specifications
- GeoBubble technology – Superior durability and 25% longer lifespan
- Selective transmission coating – Proprietary algae-prevention technology
- 500M thickness – Optimal balance of heat retention and flexibility
- Lightweight design – Easy to handle manually or with a roller system
- UV-stabilized material – Won’t degrade in sunlight like cheaper covers
- Expert sizing support – Our team helps you choose the right dimensions
Compatible With:
- ✅ Manual pool cover rollers
- ✅ Automatic reel systems
- ✅ All pool shapes (rectangular covers can be trimmed for custom shapes)
- ✅ Heat pumps and solar heating systems
- ✅ Saltwater and chlorine pools
🛠️ Installation & Maintenance
Installation (5 Minutes or Less):
- Unroll the cover with bubbles facing down
- Position over pool with slight overlap on all sides
- Trim if needed for custom shapes (use sharp scissors)
- Secure with cover roller or store when not in use
Maintenance Tips for Maximum Lifespan:
- 🌙 Remove during winter – Store in cool, dry location
- 🧹 Clean monthly – Gentle brush and hose off debris
- ☀️ Avoid chlorine contact – Remove during shock treatments
- 🌡️ Store properly – Keep away from direct heat sources when not on pool
- ⚠️ No foot traffic – Cover cannot support weight of people or animals
Expected Lifespan: 4-6 years with proper care (vs. 3-4 years for standard covers)
🤔 Common Questions About Energy Guard
“Will this completely prevent algae?”
No cover eliminates algae 100%, but Energy Guard dramatically reduces the conditions algae needs to thrive. Most customers report an 80-90% reduction in algae growth compared to uncovered or clear-covered pools.
“How much will it actually heat my pool?”
In optimal conditions (sunny climate, good sun exposure), expect 4-8°C temperature increase. However, the Energy Guard’s primary strength is heat retention rather than maximum solar gain. It works best paired with a heat pump or solar heater.
“Can I use this with my automatic pool cleaner?”
Yes! You can run your pool pump and filtration system with the cover on. Just ensure it’s properly secured and not obstructing skimmers or return jets.
“Energy Guard vs. Sol+Guard – which is better?”
- Choose Energy Guard if: Algae is your main concern, your pool is shaded, or you have recurring green water issues
- Choose Sol+Guard if: Maximum solar heating is your priority and algae isn’t a problem
“Will the dark color make my pool hotter than a clear cover?”
No – the dark coating blocks visible light, not heat-generating UV/infrared. It prevents excess heat-driven algae growth while still allowing beneficial solar heating.
⚠️ Important Disclaimers & Assumptions
Savings Calculations Based On:
- Average UK domestic pool size: 4m × 8m (approximately 32m²)
- Swimming season: April-September (6 months)
- Current energy rates: £0.08/kWh (October 2024 average)
- Water rates: £2.50-£3.75 per 1,000 litres
- Typical pool heating from 18°C to 28°C
- Covers used consistently during swimming season (80%+ of the time)
- Pool with existing heating system (heat pump or gas)
Individual Results Will Vary Based On:
- Geographic location and climate
- Amount of daily sun exposure
- Pool volume and surface area
- Existing pool temperature and heating system type
- Local energy and water rates
- How consistently the cover is used
- Water chemistry and sanitization method
- Surrounding environment (trees, wind exposure, etc.)
Performance Factors:
- Temperature increases up to 8°C require full sun exposure for 6-8 hours daily
- Chemical savings assume proper water chemistry maintenance
- Evaporation reduction figures from independent laboratory testing
- GeoBubble lifespan data from manufacturer testing vs. traditional covers
Safety Notice:
- Solar covers are NOT safety covers
- Cannot support weight of children, adults, or animals
- Not a substitute for pool fencing or supervision
- Remove cover completely before swimming
- Consider safety cover or fencing if children/pets have pool access
🎁 Why Choose Parts4Tubs for Your Solar Cover?
✅ Made to Order Quality – Every cover manufactured specifically for you
✅ Expert Guidance – Our team helps you choose the right cover for your needs
✅ Competitive Pricing – Best value GeoBubble covers in the UK
✅ Fast Dispatch – Orders processed and dispatched quickly
✅ Trusted Supplier – Years of experience in pool equipment and parts
🚀 Ready to Stop Fighting Algae and Start Saving Money?
The Energy Guard 500M GeoBubble Solar Cover is specifically engineered for pools that need both heating efficiency and algae prevention – a combination no other solar cover delivers as effectively.
Your Next Steps:
- Select your size from the options above (or request custom sizing)
- Add to your basket and complete checkout
- Receive your made-to-order cover within dispatch timeframe
- Install in 5 minutes and start saving immediately
Questions about sizing or which cover is right for your pool?
📞 Contact our expert team for personalized guidance


