I will soon have a screen enclosure built for my inground pool. I live in the panhandle of Florida in Panama City. I have to decide what type of screen to use and I am considering the Phifer No-See-Ums 20x20 mesh for better insect protection. I've heard that screen enclosures block quite a bit of the sunlight and therefore cause the water temps to be cooler. If this is true I would think the tighter meshed No-See-Ums screen would cause even cooler temperatures (as opposed to the typical 18x14 mesh screen). I'm looking for input from owners that have the No-See-Ums screen or even the 18x14 screen. If anyone has experience with these types of enclosures I would appreciate any input in regards to how much they effect pool water temperature.