Do Sand Filters Go Bad

You can reuse the filter sand if it’s still in good shape. Generally, pool filter sand lasts about 5-7 years before it wears out and needs to be replaced (except for very small filters used on aboveground pools, which usually need new sand much sooner.

How do I know if my sand filter is bad?

If you’ve noticed that the backwashing cycles have become shorter, then you should check to see if the sand filter is dirty or greasy. If the filter is dirty or greasy, then don’t be surprised if it takes on the appearance of sandy lard. When this happens, the water doesn’t flow through the sand filter media.

How often do sand filters need to be replaced?

On average, sand should be replaced every 3-5 years. This may be longer if the pool stays clear, or shorter, if the filter runs all the time. The jagged edges of the sand wear down and become smooth as the sand ages.