Solarsunrings vs solarsundiscs

I can't find any information either. There was a reference to sundiscs on Gardenweb, but they were really talking about the solar rings. The discs do look like they would work. I hope someone, maybe one of the pool industry guys knows a little bit about them and can reply.
 
Yeah I've read some thread about the solar rings but the sun discs seems to work differently while coupled through magnets and no needs to inflate.

They may have some advantage, easily store and install first but also safety as they should open in case someone (or some pet) will falls down in the pool while the cover is on it.

The research continue.....
 
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