Does Water Evaporate From Pool?

by | Last updated on January 24, 2024

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On average,

swimming pools lose about a quarter of an inch of water each day

, yet variations in wind intensity, humidity and sunlight can drastically change water loss rates. … The wind will undoubtedly have an effect on pool water, as wind can blow water particles and cause speedy evaporation.

How do you stop pool water from evaporating?


Break the wind by installing fences, trees, and shrubs around your backyard pool

to reduce evaporation losses. BONUS: Install drought-friendly plants in your backyard to save even more water.

How do I know if my pool is leaking or evaporating?

  1. Water Level Changes. Dropping water level is the clearest sign a pool is leaking, but it’s important to determine if the water loss is due to evaporation or a leak. …
  2. Cracks or Falling Tile. …
  3. Wet Spots in Yard. …
  4. High Water Bills. …
  5. Water Under Equipment. …
  6. Air or Dirt Blown Into Pool. …
  7. Algae Growth.

Why does my pool water evaporate so fast?

Evaporation occurs whenever you expose wind or air to the surface of your pool. … Water molecules rise to the surface, form into a vapor and eventually get released into the air.

Heated pools on cool nights experience evaporation more rapidly

. This is also why heated pools lose most of their heat overnight.

Is my pool water evaporating?


If the water went down a similar amount in the pool as well as

the bucket, then you lost water due to evaporation. If it went down more in the skimmer and not much at all in the bucket then you have a pool leaking. … If the pool loses water only when running, it indicates a leak on the pressure side.

How can you tell where your pool is leaking from?

  1. Water Level Changes. Dropping water level is the clearest sign a pool is leaking, but it’s important to determine if the water loss is due to evaporation or a leak. …
  2. Cracks or Falling Tile. …
  3. Wet Spots in Yard. …
  4. High Water Bills. …
  5. Water Under Equipment. …
  6. Air or Dirt Blown Into Pool. …
  7. Algae Growth.

How often should you have to add water to your pool?

With pools that are covered, a good rule of thumb is that they should not have to be refilled more often

than once every 2 weeks

.

How fast should pool water evaporate?

The average pool water evaporation rate is

about a quarter of an inch of water per day

or more than two inches in a week, which on a 33′ x 18′ swimming pool (an average pool size) is more than 2500 liters or approximately 600 gallons a week; this may vary depending on your climate and the factors listed above.

Why is my pool losing so much water?

No matter which season you are in, your pool can lose inches of water a week. Natural causes such as

wind, heat and humidity

can contribute to pool water loss. This is a big deal, because if your water level gets too low it may cause your pool pump to suck air and run dry, which can damage it.

How much water can a pool lose due to evaporation?

Quick answer: You can expect to lose

between 2 mm to 2 inches of water

in your pool per week due to evaporation, depending on the various factors we’ll get into in this article.

How much water loss is normal in a pool?

On average, swimming pools lose

about a quarter of an inch of water each day

, yet variations in wind intensity, humidity and sunlight can drastically change water loss rates.

How do you calculate water loss in a pool?


Multiply the length (L) times width (W) times the amount of the water loss (WL) in inches times

. 6233 for a rectangular pool.

Why is my inground pool losing an inch of water a day?

Losing more than 1⁄2” of pool water per day indicates

you likely have a leak in your pool’s structure or your pool pump system

. You should call your pool service for a thorough leak inspection. You might not be able to keep up with refilling your pool at this point.

How much does it cost to detect a pool leak?

Expect to pay

$100 to $500

for pool leak detection services. Professionals might include minor patch jobs in the detection price. Expect a separate bid for major repairs.

Why is my pool losing water overnight?

If your pool lost water overnight and it is more than the quarter-inch due

to evaporation

, you probably have a leak. Evaporation accounts for a minor amount of water lost each day. Losing a half-inch or move overnight indicates a problem. … A more significant water loss in the pool will indicate a leak.

How do I fix a leak in my pool?

To apply Stop Leak to your pool or spa, remove filter grids or cartridges from filter. Then fill the pool or spa to the proper level. With pump operating,

slowly add 16 ounces of Stop Leak to the skimmer

or as close to main drain as possible. (Do not turn on heater or blower.)

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.