Best overall
WaterWarden Premium Pool Safety Cover for 12x20 Ft In-Ground Pool
WaterWarden
Genuine weight-bearing barrier, not just a debris shieldand classified under ASTM F1346
- UL-classified per ASTM F1346
- Solid vinyl, blocks nearly 100% of sunlight
- 20-year warranty
- Anchors into deck-set brass points
- Rated for adult foot traffic
Pros
- Genuine weight-bearing barrier, not just a debris shieldand classified under ASTM F1346
- Solid vinyl blocks essentially all sunlight, the strongest algae control of any cover type
- 20-year warranty leads the safety cover category at this size
- 412 ratings at 4.6 stars is a strong track record for a premium product
Cons
- Requires a cover pump since rainwater and snowmelt pool on the solid surface
- Custom anchor measurement to the deck adds cost and lead time versus a stock winter tarp
- Blocks all solar heating, unusable as a swim-season cover
- Heavier and harder to remove solo than a mesh equivalent
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