Does the solar pool heating system work when it is cloudy outside?
As long as it is daytime, the solar system absorbs solar radiation. Any solar radiation absorbed by the system is then transferred into the pool water. Therefore, even in cloudy conditions, the solar pool heating system will heat your pool. It is important to note that increasing the number of solar panels in your system will help absorb more heat. As with any heater, using a pool blanket is advisable, as it will reduce heat loss.