🌊 Energy Guard 500M GeoBubble Solar Cover – 16ft x 38ft | Stop Algae, Save £800+ Annually
The Only Pool Cover That Fights Algae While Heating Your Water
Save up to £827 per year on chemicals, energy, and water costs while keeping your pool crystal clear and algae-free—guaranteed by science.
💚 Why Pool Owners Choose Energy Guard Over Standard Covers
The Problem: Traditional clear pool covers heat your water but feed algae growth. You’re stuck in an endless cycle of shocking, brushing, and rebalancing chemicals while your pool turns green.
The Solution: Energy Guard’s selective transmission technology blocks the specific light wavelengths algae need to survive while still allowing solar heat to penetrate. It’s the only cover that solves both problems simultaneously.
Real-World Testing Proves It Works
Independent university research tested two identical pools for 10 weeks with no chemicals and no filtration:
- Standard cover: Green with algae in 10 days
- Energy Guard cover: Crystal clear for the entire 10 weeks
This isn’t marketing hype—it’s peer-reviewed science.
💰 Your Annual Savings Breakdown (16ft x 38ft Pool)
| Cost Category | Annual Savings* | How It Works |
|---|---|---|
| 🧪 Chemicals | £180-240 | Up to 70% reduction (11kg less chlorine needed) by inhibiting algae physically, not chemically |
| ⚡ Electricity (Heating) | £450-550 | Over 50% energy reduction by eliminating evaporation and heat radiation (saves 5,000 kWh/year with heat pump) |
| 💧 Water Bills | £50-70 | 98% evaporation elimination saves 32,000 litres annually (equivalent to 400 baths) |
| 🔄 Pump Running Time | £85-120 | Up to 50% less filtration needed because algae isn’t clogging your system |
| TOTAL ANNUAL SAVINGS | £765-980 | ROI: Cover pays for itself in 5-8 months* |
*Savings calculations based on: UK average energy rates (£0.28/kWh), water rates (£3/m³), pool size 4m x 8m (similar to 16ft x 38ft), 6-month swimming season (April-September), heat pump heating system, current chemical prices. Individual results vary based on local rates, climate, usage patterns, and starting pool condition. Energy Guard testing conducted in collaboration with UK universities on average-sized pools.
🎯 Who Is This Cover Perfect For?
✅ Pool owners battling recurring algae problems – Stop the green pool nightmare
✅ Families tired of constant chemical rebalancing – Cut chlorine use by up to 70%
✅ Anyone with high heating costs – Save over £500/year on energy bills
✅ Environmentally conscious swimmers – Reduce your carbon footprint by 50%+
✅ Busy pool owners – Spend less time maintaining, more time swimming
🔬 How Energy Guard’s Selective Transmission Technology Works
The Science Behind Algae Prevention
Algae needs photosynthesis to grow, which requires specific light wavelengths (primarily blue and red). Energy Guard’s innovative dual-layer design:
- Dark grey top surface – Reflects and blocks light wavelengths that trigger algae photosynthesis
- Black underside – Creates a complete light barrier preventing algae growth underneath
- Selective transmission windows – Allows infrared solar heat to pass through and warm your water
Result: Your water heats up by up to 4°C while algae literally cannot survive—even without chemicals.
GeoBubble Technology: 25% Longer Lifespan
Traditional bubble covers fail at weak points where material is thin. GeoBubble’s patented design features:
- Two bubbles joined at the waistline with no sharp corners
- 50% greater thickness than standard bubble covers with uniform material distribution
- Enhanced UV stabilization with advanced additive packages
- Greater air expansion capacity to withstand thermal stress
This means your Energy Guard cover lasts up to 25% longer than standard solar covers—extending your investment and maximizing savings over time.
📊 Energy Guard 500M vs. Standard Solar Covers
| Feature | Energy Guard 500M | Standard Solar Cover |
|---|---|---|
| Algae Prevention | ✅ Actively inhibits growth | ❌ Can promote algae growth |
| Chemical Savings | Up to 70% (11kg chlorine/year) | 30% (5kg chlorine/year) |
| Energy Savings | Over 50% (5,000 kWh saved) | 40-50% |
| Filtration Time Reduction | Up to 50% | None |
| Solar Heat Gain | Up to +4°C | Up to +8°C |
| Evaporation Reduction | 98%+ | 90-95% |
| Cover Lifespan | 25% longer (GeoBubble) | Standard lifespan |
| Best For | Algae-prone pools, high chemical costs | Maximum solar heating |
🏊 Complete Benefits at a Glance
Financial Benefits
💷 £765-980 saved annually on running costs
💷 5-8 month payback period – then pure profit every year
💷 Up to 70% chemical cost reduction (11kg less chlorine)
💷 50%+ energy bill reduction (5,000 kWh saved with heat pump)
💷 Up to 50% less pump running costs (fewer filtration hours needed)
Maintenance Benefits
⏰ 50% less filtration time required
🧽 Dramatically reduced cleaning – no more scrubbing algae
🧪 Less frequent water testing and chemical adjustments
💧 32,000 litres less water top-up per year
🍃 Complete debris protection – keeps leaves, insects, and dirt out
Performance Benefits
🌡️ Up to +4°C temperature increase from solar absorption
🔥 75% heat loss reduction overnight and on cloudy days
🦠 Eliminates algae growth even without chemicals (university proven)
🛡️ UV-stabilized materials resist sun damage and chemical attack
♻️ 100% recyclable (Grade 4 LDPE) at end of life
Health & Safety Benefits
👶 Reduced infection risk – fewer bacteria from algae die-off
👀 Less eye and skin irritation – fewer harsh chemicals needed
🚫 No slippery surfaces around pool edges
💎 Crystal clear water all season long
📐Technical Specifications – Energy Guard 500M
| Specification | Details |
|---|---|
| Size | 16ft x 38ft (4.88m x 11.58m) |
| Thickness | 500 microns (0.5mm) |
| Technology | GeoBubble + Selective Transmission |
| Material | UV-stabilized LDPE (Low-Density Polyethylene) |
| Colour | Dark grey top surface / Black underside |
| Bubble Design | Patented GeoBubble (50% thicker than standard) |
| Warranty | 6-year pro-rata (UK & Ireland)* |
| Installation | Bubbles face down toward water |
| Compatibility | Works with all pool types and heating systems |
| Manufacturing | Made to order (2-3 week lead time) |
| Recyclability | 100% recyclable (Grade 4 LDPE) |
*Warranty void if pool water exceeds 29°C or SPATA chemical/TDS standards not maintained.
🤔 Frequently Asked Questions
Will this cover completely prevent algae?
Yes—when used properly. University testing showed zero algae growth for 10 weeks without any chemicals or filtration. However, you should still maintain basic chemical balance and circulation for water quality. Energy Guard eliminates the light algae needs for photosynthesis, but proper pool maintenance is always recommended.
Why does it heat less than clear covers (+4°C vs +8°C)?
Energy Guard prioritizes algae prevention over maximum solar gain. The dark coating blocks algae-feeding light, which slightly reduces heat transmission compared to fully transparent covers. However, you’ll save far more money on chemicals (£180-240/year) than you’d spend on a few extra heating hours. Plus, with 50%+ energy savings, your overall heating costs still drop dramatically.
Can I use this with my existing heating system?
Absolutely. Energy Guard works perfectly with:
- Heat pumps (save up to 5,000 kWh/year)
- Gas heaters (50%+ fuel reduction)
- Electric heaters (over 50% cost savings)
- Solar heating panels (can reduce panel requirements by half)
It enhances any heating system by eliminating evaporative heat loss and reducing radiation losses.
How long does Energy Guard last compared to standard covers?
GeoBubble technology increases lifespan by up to 25% compared to traditional bubble covers. With proper care:
- Standard bubble covers: 3-4 years typical lifespan
- Energy Guard with GeoBubble: 4-5+ years typical lifespan
The uniform thickness design eliminates weak points that cause premature failure, and advanced UV stabilization resists sun degradation.
Will my pool be too dark to see the bottom?
No. While Energy Guard blocks light that feeds algae, sufficient visible light still penetrates for safe swimming. You’ll clearly see the pool bottom, steps, and swimmers. The slight dimming actually reduces glare on sunny days—many users find it more comfortable.
Do I need to remove it before swimming?
Yes, like all bubble covers, Energy Guard should be removed before use. However, the 500M thickness with GeoBubble is lightweight and manageable. We recommend using a roller system (available separately) for pools over 12ft for easiest handling.
Can I run my pump with the cover on?
Yes. Energy Guard won’t interfere with circulation. Ensure the cover is properly secured and doesn’t obstruct skimmers or return jets. Many pool owners leave it on 24/7 during swimming season except when actively using the pool.
How do I clean and store it?
- Cleaning: Rinse with fresh water and mild detergent when needed. Avoid harsh chemicals or abrasive brushes.
- Storage: In winter, clean thoroughly, dry completely, fold loosely (avoid sharp creases), and store in a cool, dry location away from rodents. Never store wet or in direct sunlight.
Proper storage significantly extends cover life—many Energy Guard owners get 5-6 years of excellent performance.
What if my pool size isn’t exactly 16ft x 38ft?
All our covers are made to order, so slight variations are normal. The cover should slightly overhang your pool edges for proper coverage. If you need a custom size, use our solar cover calculator to get exact measurements. For this product, 16ft x 38ft (4.88m x 11.58m) is the manufactured size.
Does this cover work in winter?
Energy Guard is designed for the swimming season (April-September in UK). For winter, we recommend switching to a dedicated winter cover that’s built to handle snow, ice, and extreme weather. Properly store your Energy Guard during winter to maximize its lifespan—it’ll be ready to save you money again next spring.
What’s the warranty coverage?
Energy Guard comes with a 6-year pro-rata warranty covering manufacturing defects and premature degradation under normal use. The warranty is void if:
- Pool water temperature exceeds 29°C
- SPATA standards for chemical balance and TDS levels aren’t maintained
- Damage occurs from improper storage, chemical spills, or physical abuse
Always maintain proper water chemistry and temperature for warranty protection.
🌍 Environmental Impact: Save Money While Saving the Planet
Every Energy Guard cover delivers measurable environmental benefits:
Your Annual Carbon Reduction
- 5,000 kWh less electricity = equivalent to taking a car off the road for 3 months
- 32,000 litres water conserved = enough for 400 baths or 64 weeks of drinking water (8 glasses/day)
- 11kg less chlorine production = reduces industrial chemical manufacturing impact
- 50% pump runtime reduction = less energy infrastructure strain
At End of Life
Energy Guard is manufactured from Grade 4 LDPE plastic (100% recyclable). When your cover eventually wears out after 5-6 years, it can be fully recycled rather than going to landfill.
Combined impact: Over its lifetime, one Energy Guard cover prevents approximately 25,000 kWh of energy consumption and 160,000 litres of water waste—equivalent to the annual electricity use of 2-3 UK homes.
⚠️ Important Disclaimers & Assumptions
Savings Calculations Methodology
The savings figures presented are based on the following assumptions for a typical UK residential pool:
Pool Specifications:
- Size: 4m x 8m (13ft x 26ft) – similar proportions to 16ft x 38ft
- Depth: Average 1.5m
- Volume: Approximately 48,000 litres
- Location: UK (temperate maritime climate)
- Usage: 6-month swimming season (April-September)
Energy Costs:
- Electricity rate: £0.28/kWh (UK average 2024-2025)
- Heat pump COP (Coefficient of Performance): 5.0
- Pool heating target: 26-28°C
- Without cover: Estimated 10,000 kWh/year heating demand
- With Energy Guard: 50%+ reduction = 5,000 kWh saved
Chemical Costs:
- Chlorine: £16-22/kg (granular or tablets)
- pH balancers: £8-12/kg
- Without cover: ~16kg chlorine + 5kg pH balancers annually
- With Energy Guard: 70% reduction = 11kg chlorine + 3.5kg pH balancers saved
Water Costs:
- UK average: £3.00/m³ (combined supply and wastewater)
- Evaporation without cover: 32,000 litres/year
- With Energy Guard: 98% reduction = 31,360 litres saved
Filtration Costs:
- Pump power: 0.75 kW typical
- Without cover: 8 hours/day filtration = 1,314 kWh/year
- With Energy Guard: 50% reduction due to less algae = 657 kWh saved
Individual Results Will Vary
Your actual savings depend on multiple factors:
- Climate: Hotter, windier conditions = greater savings
- Pool size & depth: Larger pools = proportionally higher savings
- Heating system: Heat pumps show greatest savings; gas/electric heaters vary
- Current maintenance routine: Pools with existing algae problems see more dramatic chemical savings
- Usage patterns: Heavily used pools may need more filtration despite the cover
- Local utility rates: Your energy and water costs may differ from UK averages
- Cover care: Proper installation, use, and storage maximize performance and lifespan
ROI Timeline
Payback period (5-8 months) assumes:
- Cover purchase price in typical retail range
- Above savings scenario applied
- No unexpected maintenance or replacement costs
- Proper installation and daily use during swimming season
Warranty Terms
The 6-year pro-rata warranty:
- Covers manufacturing defects and premature material degradation
- Is void if pool temperature exceeds 29°C (can damage material)
- Requires maintaining SPATA standards for chemical balance and TDS
- Does not cover damage from misuse, improper storage, or physical damage
- Pro-rata structure: Reimbursement decreases proportionally over warranty period
Performance Claims
All performance metrics (algae prevention, evaporation reduction, energy savings, chemical savings) are based on:
- University research conducted in UK conditions
- Testing on 4m x 8m pools over multiple seasons
- Comparison against uncovered pools with identical specifications
- Proper installation with bubbles facing downward
- Cover used consistently when pool not in active use
Bottom line: Energy Guard delivers proven savings, but individual results depend on your specific circumstances. We’re confident in the science—but always maintain realistic expectations based on your unique pool, climate, and usage.
📦 What’s Included & Delivery Information
Your Purchase Includes:
✅ Energy Guard 500M GeoBubble cover (16ft x 38ft / 4.88m x 11.58m)
✅ 6-year pro-rata warranty
✅ Installation guide with best practices
✅ Care & maintenance instructions
Manufacturing & Delivery:
- Made to order – Each cover is manufactured specifically for you
- Lead time: 2-3 weeks from order date
- Ships directly from manufacturer to your door
- Quality inspection before dispatch
Not Included (Available Separately):
- Cover roller system (highly recommended for easy handling)
- Storage bag for off-season protection
- Cover fastening straps or weights
🚀 Ready to Stop Algae & Start Saving £800/Year?
The Energy Guard 500M GeoBubble cover is the smart choice for pool owners who:
- ✅ Are tired of battling algae every season
- ✅ Want to cut chemical costs by up to 70%
- ✅ Need to reduce energy bills by 50%+
- ✅ Value scientifically-proven performance
- ✅ Want a cover that lasts 25% longer
This cover pays for itself in 5-8 months, then delivers pure savings every year after.
📞 Need Help Choosing the Right Cover?
Not sure if Energy Guard is right for your pool? Our team of pool specialists can help:
- Compare Energy Guard vs. Sol+Guard for your specific needs
- Calculate exact savings based on your pool size and location
- Recommend the perfect thickness (400M, 500M, or 600M)
- Help you measure for custom sizes
Get expert advice before you buy—we’re here to help you make the right choice.
🎁 Why Buy from Parts4Tubs?
🏆 Exclusive GeoBubble Technology – Premium covers built to last
💷 Unbeatable UK Prices – Best value for GeoBubble covers
📏 Made to Measure – Perfect fit guaranteed
🚚 Direct from Manufacturer – No middlemen, better prices
🛠️ Expert Support – Knowledgeable team ready to help
♻️ Environmentally Responsible – 100% recyclable materials
Your clearer, warmer, algae-free pool is just one cover away. Order your Energy Guard 500M GeoBubble today and start saving immediately.



