CPSA to Study Effects of Pool Covers on Evaporation

“Pools use less water than lawns of the same size.” It’s a commonly touted phrase, especially as pool pros continue to fight the perception that swimming pools waste water — but how true is it? The California Pool and Spa Association plans to find out with a new study.

The study, which will be conducted in partnership with the National Plasterers Council, the Association of Pool & Spa Professionals and the Independent Pool and Spa Service Association, will quantify the water savings that can be achieved by various types of pool covers. Research will take place at the Cal Poly National Pool Industry Research Center on the California Polytechnic State University campus in San Luis Obispo throughout July and August.

Per the press release:

“There are as of yet no exact figures on how much water is saved with the installation of various types of pool covers. Estimates range from 50 to 90 percent in savings, an issue that is complicated even further when all of the variations in cover design and style are considered. This study aims to end that uncertainty by examining a pool’s water usage with many different types of covers, accurately measuring and tracking the differences in each. This will include measuring the water levels of eight different pools at the NPIRC for a full sixty days, taking into account such factors as climate conditions, wind, and rainfall during the study.

Swimming pool owners seem to understand that pool covers are one of the best methods to save water. However, consumers have not been provided accurate information on the performance of the various systems. In addition to the traditional air bubble covers, there are different kinds of permanent covers, solar rings and solar squares, and now a range of liquid pool covers that provide systematic water savings while maintaining the landscape features of the pool. This study seeks to more clearly inform the pool and spa industry on the exact numbers of evaporation and water loss, as well as empower pool owners to make the best choice to protect and maintain their investment.”


What do you think of the news? What would you like to see the study address? Comment with your thoughts.