Quick Fact: Pool Evaporation Rates

The last thing you want to see at the end of a long day is water loss in your pool. This can be the result of one of two things: a leak or water evaporation. If you have a household of children, splashing can reduce the water level on occasion.

Water evaporation rates depend on two factors: geographic and environmental. If you are noticing significant water loss, try a bucket test to determine if it’s a leak or evaporation. If you are constantly needing to fill up and top off your pool, you likely have a leak.

It’s normal for swimming pools to lose a quarter inch or so of water each day. Of course, environmental factors such as wind, sunlight, and humidity can drastically effect these rates.

If you live in a mountainous region of the country the wind can have a strong effect on pool water. Wind can actually blow the water particles and cause speedy evaporation. If you live by the Great Lakes, near an ocean, or on the Great Plains, you can also experience high wind levels causing fast evaporation.

If you don’t think wind is the problem it could either be sunlight or humidity. Humidity is the amount of moisture in the air. When the air is ‘humid’ water molecules stay in place. If you live in humid areas, your pool’s water molecules will stay right where they are. On the other hand, if the air is dry, water molecules will evaporate at a higher speed.

If the air in your environment is on the dryer side, you most likely live in a high sunlight environment. Sunlight will speed up the process of evaporation. When the sun’s rays are strong, water molecules evaporate and dry up. They convert to air molecules to be soaked up by the dry air.

If you still have questions and are unsure as to the reason of your pool’s water loss, contact Ask the Pool guy!

cropped-512x512.jpg