Once again we are talking about new solar pool heating ideas. In the case it is the Solar Sun Rings. These have been around for a few years now with different manufacturers now selling different styles. They are all essentialluy the same, a plastic ring wrapped in plastic.
Do they work?
Well… yes they do heat your pool. Not very efficiently but the do heat your pool. A solar pool heating blanket is cheaper and much more effective way of heating your pool. They work on the same principle as the solar sun rings but they have air bubbles separating the top layer from the water. This greatly reduces the wind chill factor and heat loss due to evaporation.
A cheap way to heat your pool for the short term is to use black plastic, great for a party or once off and cost peanuts from bunnings. It is not a solar pool blanket but it is a cheap knockoff.
Beware any sites offering “product review” that sell the product. Some dodgy manufacturers place false product review to boost their star rating. I do think solar sun rings are one of these companies, read all reviews and decide for yourself.