Quote Originally Posted by waterbear View Post
I have gone away for two week and just shut everything off during the heat of summer (July). When I returned the pool was only slightly cloudy (but no chlorine left) which was fixed by a shock with bleach.

My secret? I have 50 ppm borates in my pool!
Besides the borates I wonder if algae growth is constrained by other factors that relate to the pool's environment.

Your avatar betrays the use of a bird cage (enclosure) that are so ubiquitous in Florida. That would be one variable and must reduce UV exposure. Other possible factors: cloudy weather and summer rain (there's almost none in the southwest and large portions of California during July and August); humidity; day/night air temperature swings; cover usage; etc.