My pool equipment is in direct sunlight from late morning until sunset. It gets blasted and the sun has definitely shortened the life of components that are exposed. My automation panel has a metal door and the paint coating on the front of it is deteriorating (gritty and the color wipes off on your hand). Sun, heat and UV will destroy most anything over time. So I would say if you have sensitive components you'd be better off relocating them to a shadier location or you need to enclose and/or protect them from the sun. I like the CircuPool cells that are visible BUT no plastic is capable of withstanding constant UV exposure and so it makes perfect sense that they would fracture/fail early. This is probably why Pentair and Hayward both use standard white PVC to construct their cells, it simply holds up better to exposure and, once the exterior has weathered a little, the deterioration slows down.