Q. What should my pool water temperature be?

A. Not an easy question to answer. Depending upon the how the pool will be used, who will use it, and in which part of the country the pool is located, the ideal pool water temperature will vary.

For instance, if the pool is used for competitive purposes or strenuous exercise, the water will normally be set to a lower temperature (e.g., 78 degrees Fahrenheit or lower). Most public pools are operated at a temperature range of 78 degrees F - 82 degrees F. Pools used for swimming classes, and therapy (including children and the elderly) are usually kept at slightly warmer temperatures (e.g., 83 degrees - 86 degrees F).

According to some sources, 75 degrees F is good for lap swimming while other sources suggest that 72 degrees F is the way to go. The bottom line is - set the temperature to suit yourself. (Note that if your pool is not heated the weather will dictate water temperature).

You may, however, be interested in how your pool is affected by changing water temperatures. As water temperatures increase:

• water evaporation rates increase
• chemical usage increases
• the water becomes harder to balance
• calcium is less soluble, therefore calcium deposits increase
• there is more organic loading due to increased swimmer perspiration
• chloramine levels increase resulting in "locker room" odors
• there is increased total dissolved solids resulting in water clarity problems
• many more water balancing issues

Why is all this so important? Click here.