Brisbane Cleanapool

Changing The Sand in Sand Filter

We are happy to do your sand change in off season Phone 0402169355

How often should the sand in a swimming pool filter be changed? We recommend changing the sand every four years. While we have seen filters go for 8 years or more without changing the sand and still do the job, they are not as efficient as they should be.

Filter sand has been ground to a size of .45 to .55 mm in diameter and is very rough when new. This roughness is what makes the sand efficient at filtering out the particles of dirt in your water. As this roughness is smoothed out - as stones in a stream wear smooth over time - your filters efficiency goes down.

This means that your system has to run more frequently to accomplish the same task. This can increase the amount of sanitizer used, thereby increasing your chemical costs.

In addition we have found that after four years, your sand has worn enough to allow dirt to penetrate so deep that normal backwashing doesn't clean it completely. The result is shorter filter cycles which requires more frequent backwashing.

Item added 27 April 2015