Then a Houston rainstorm rolled through, and suddenly the water doesn't look quite as inviting. Maybe it's slightly cloudy. Maybe there's a green tint developing. Or perhaps the pool looks fine, but the chlorine reading has dropped dramatically.

Storms are often the biggest culprit this time of year. Wind pushes pollen, dirt, leaves, and organic debris into the water, forcing filtration systems to work overtime. Repeated rain can also dilute pool chemistry, changing chlorine levels and affecting water clarity. Even pools that looked perfect a few days earlier may suddenly need extra attention.