Pool Covers Solar Rings

pool covers solar rings
What’s recommended to heat above ground round swimming pool?

I’ve just bought a 15ft round pool. It comes with a standard blue cover but I heard that solar cover are the thing to get for heating the pool. I’ve looked online and some are very expensive and there are lots of different qualities, 400 microns etc. I also came across solar sun rings. Can anybody recommend what sort of solar heating cover to get – or if they are worth bothering with at all? Many thanks!

The blue cover does help but the solar cover works better. The solar rings are not as efficient as the solar cover but are much easier to use