GeoBubble Thermal Pool Blankets Compared: Sol+Guard, Standard & EnergyGuard
GeoBubble thermal blankets are the modern evolution of pool bubble wrap — same concept, dramatically better performance. Three variants are available: Sol+Guard for maximum heat gain, Standard for general use, and EnergyGuard for algae-prone pools.
Willem de Wet · Managing Director
NSPI Accredited Member · SABS SANS 10134:2016 Certified
CRITICAL SAFETY NOTICE
GeoBubble thermal blankets are NOT safety covers and do not prevent drowning. They float on the water and can be pulled aside by a child, pet or any movement. They do not satisfy SANS 10134:2016 safety requirements. If safety is your priority, you need a manual safety cover, hydraulic vinyl cover, or slatted automatic cover.
How GeoBubble Differs from Standard Bubble Wrap
Traditional bubble wrap pool covers used round bubbles — the same dome shape that's been used for 50 years. GeoBubble uses a patented twin-bubble geometry that:
- Eliminates the weak point at the base of the bubble (where standard bubble wrap fails first).
- Increases air volume per square metre by 50%.
- Improves heat retention by 25–30% over standard bubble wrap.
- Lasts 25–50% longer (4–6 years vs 3–4 years for standard).
The Three GeoBubble Variants
Sol+Guard (Light Blue, 500-micron)
- Heat gain: up to 10°C above unprotected pool temperature.
- Best for: primary heating function. Cooler regions (Cape Town, Highveld winters).
- Lifespan: 5–6 years with proper care.
- Material: 500-micron UV-stabilised polyethylene with twin-bubble geometry.
Standard (Dark Blue, 400-micron)
- Heat gain: up to 8°C.
- Best for: general-purpose use, cost-conscious buyers, mild climates.
- Lifespan: 4–5 years.
- Material: 400-micron UV-stabilised polyethylene.
EnergyGuard (Grey/Black, 500-micron)
- Heat gain: up to 7°C.
- Best for: pools with persistent algae issues, hot regions where heat retention is secondary.
- Lifespan: 5–6 years.
- Special property: blocks photosynthesis-driving wavelengths, dramatically reducing algae growth.
- Bonus: reduces chlorine demand by 40–60% in algae-prone pools.
Comparison at a Glance
| Feature | Sol+Guard | Standard | EnergyGuard |
|---|---|---|---|
| Heat Gain | Up to 10°C | Up to 8°C | Up to 7°C |
| Algae Control | Low | Medium | Excellent |
| Lifespan | 5–6 years | 4–5 years | 5–6 years |
| Thickness | 500µ | 400µ | 500µ |
| Price | Mid-range | Cheapest | Premium |
Recommendation Matrix
- Maximum pool warmth: Sol+Guard (Light Blue, 500-micron).
- Best value general use: Standard (Dark Blue, 400-micron).
- Algae control / chemical reduction: EnergyGuard (Grey, 500-micron).
- Pool in tree-shaded location: Sol+Guard (extracts maximum value from limited sun).
- Hot Lowveld / KZN coast: EnergyGuard (heat retention secondary, algae control valuable).
Lifespan and Care
- Avoid leaving the cover off the pool in direct sun — UV degrades unsupported sections fastest.
- Rinse with fresh water monthly to remove pool chemicals.
- Use a roll-up station rather than dragging across the deck.
- Store cool and dry over winter if not in continuous use.
- Replace at first signs of bubble collapse — performance degrades sharply once bubbles fail.
Frequently Asked Questions
Can I cut a GeoBubble blanket to fit a custom-shape pool?
Yes — GeoBubble can be field-trimmed with sharp scissors. We provide trimming guides.
Do GeoBubble covers replace a heat pump?
For mild climates, often yes. For year-round Highveld swimming, you need both.
Can children walk on a GeoBubble cover?
No — they will sink. These are NOT safety covers.
How do I clean a GeoBubble cover?
Soft brush, mild soap, fresh-water rinse. Avoid chlorine-based cleaners on the cover surface.
Which side faces the water?
The bubble side — bubbles down.
Order Your GeoBubble Cover
Designer Pool Covers stocks all three GeoBubble variants in standard and custom sizes, with delivery nationwide.