If you are looking for an eco-friendly solution to raise your pool water temperature values, then look no further than this Safety Blanket Bubble Mat Above 500 Micron Blue/Black Swimming Pool Cover. It is covered by thousands of bubbles which work to collect and retain the heat from the sun energy inside the pool. Reinforced with UV-proof and high-quality materials, the best pool cover possesses better wear and tear resistance for daily performance, particularly in severe weather. Durable and long-lasting, the cover can keep the pool water from evaporating over 98% and help reduce pool chemical use. Plus, keeping this cover on your pool can cut back on unhealthy pool invaders such as dirt, bacteria or debris.