Keep or Dump Sand every year?

[bsbrega]

For years and years I dutifully dumped my sand from my Proline sand filter and refilled it at opening. I recently switched to Hayward becasue the parts are easier for me to get. The guy who delivered it told me I didn't need to dump the sand. In fact he said with Hayward, it is difficult to do.
Please chime in with a discussion of this. I have created in 15 years a small beach next to my pool with all the years of sand!

[MaryLee]

I have a DE filter, but from reading these forums, I believe you aren't supposed to change the sand. It should be good for years before it needs changing (unless you're doing a baquacil conversion or something).

[Watermom]

MaryLee is correct. Keep the sand.

[hrsdennis]

It is agreed by most pool dealers here in Arizona that you should change your sand every 5 to 7 years.

Dennis

[CarlD]

Don't change the sand! It filters BETTER as it gets older and dirtier. You should only change the sand if you have a problem (like it's gummed up).

I'm currently on my 4th season with the same sand and don't expect to have to change it for years.

[Poolidiot]

I agree with Carl. I am on my 5th season with my pool and I have never changes the sand.

[Poconos]

I'm starting my 9th season with the same sand. Think maybe I should add a little because of the little that is lost when backwashing...but...maybe next year.
Al

[seminolewind]

Same here, on my 5th swimming season with the same sand in my Hayward filter. They work better the dirtier they get.