A sparkling, clear swimming pool is inviting on a hot summer's day, but if the water quality is poor, the pool will sicken -- instead of refresh -- its users. For that reason, swimming pool owners need to be diligent about properly maintaining their pools. Part of this maintenance includes changing the pool water when needed. How often this is varies, but in general, pool water should be changed every two to three years.
Chemicals, Filter and Vacuum Use
How often you need to change your pool water depends in large part on your daily maintenance routine. It's important to keep the free chlorine and pH levels at the right amounts. Chlorine should never drop below 1.0 ppm, or it will not be effective in killing algae and harmful bacteria. The pH levels of the pool should be between 7.2 and 7.6. Test your water daily. If you keep the levels steady, you don't have to change your pool water as often. Using a good filter and cleaning it out on a regular basis keeps your water clean, as does the use of an automated pool vacuum.
Hard or Soft Water
The type of water you use in your pool can also be a factor in how often you need to replace it. Hard water contains more minerals, which build up on the walls and bottom of the pool over time. Scrubbing the walls on a regular basis with a brush or vacuum helps, but swimming pools that have hard water may still need to be emptied more frequently than those that have soft water.
As water evaporates from your pool, it leaves behind the minerals it contained. As you add more mineral-rich water, the ratio of minerals to water increases. A TDS test can measure how many minerals and salts your pool water contains. As this level increases, it takes more and more chemicals to clean your water. Once the TDS level reaches 1,550 ppm, it is time to change the water in your pool.
Some situations necessitate an immediate change of the pool water. Cloudy, green water, a bad smell, slimy pool walls and obvious debris are all signs that the pool water may be bad for a swimmer's health. While a chlorine shock may serve to clean the water temporarily, if the conditions are extreme, a complete change of pool water may be needed.
- Photo Credit swimming pool image by brelsbil from Fotolia.com
How Often Should I Change My Pool Filters?
Although they provide plenty of entertainment, swimming pools also require plenty of care and maintenance in order to keep them functioning properly....
How Often Do You Need to Drain a Salt Water Pool?
There are benefits and disadvantages to having a salt water pool. You need to drain the pool less frequently than if you...
How Long Can Water Stay in a Kiddie Pool?
Kiddie pools vary in size but are generally no deeper than 3 feet. They also are no larger than 15 feet across....