What Happens During Pool Water Evaporation?
Pool water evaporation and, more importantly, the rate of pool water evaporation is caused and influenced by a number of different factors. As you seek for pool drought prevention Texas North, you may also want to know more about water evaporation. These things will affect how pool evaporation takes place:
Surface area and temperature
Basically, the larger the pool surface area, the greater the volume of water that will be evaporated. Temperature is another cause but it’s not simply the case that hotter air temperatures result in greater evaporation. The specific issue is the difference between the air temperature and the water temperature. The greater the difference, the greater the rate of evaporation.
As a result, most evaporation actually occurs at night. This might seem counter-intuitive, but the reason is that at night, the pool water is relatively warm, but the air temperature has dropped. Therefore, the difference between the air and water temperatures is greater – thus, more evaporation occurs. During the middle of the day, however, the air and water temperatures are often fairly close – thus the rate of evaporation is less.
Effects of humidity and wind
Humid air already contains a lot of moisture. Because of this, its ability to absorb more is limited. The practical upshot in terms of losing your pool water is this; when the air’s humid, the evaporation rate is slower; when the air’s dry, evaporation rate is greater.
Also, the windier it is, the faster the rate of evaporation. The reason for this is that the air just above the surface of the water is the first responder to evaporation, and it has its own little micro-climate, with its own little micro-humidity. Just as with the humidity of the atmosphere as a whole, the humidity of the few centimeters of air immediately above the surface of the water dictates the rate of evaporation.
When its micro-climate becomes saturated with water, it acts like an insulating layer of moist and warm air, and the evaporation rate naturally slows. And that’s where wind comes in. Even a small amount of wind will constantly displace this insulating layer of air. The result? Increased evaporation. In fact, a gentle breeze of no more than 10 km per hour will increase the rate of evaporation by more than double.
What about usage
The rate of evaporation increases when people are in and using the pool. And the more people who are in the pool, the greater the rate of evaporation. Why? Because human activity has the same destabilizing effect on the micro-climate of the few centimeters of air above the water surface as wind.
Now that you have some insight on how pool evaporation occurs, why not consider pool drought prevention Texas North to assist in conserving water.