My Hayward s244t sand filter is about 5 years old. I just moved into this house so it is my first year with a pool. My question is... I vaccum the pool and sand is still in my pool.

If I replace my sand will that might stop the sand leaking back into my pool? I thought I read on the Hayward website that sand breaks down after 3-5 years (gets smaller) and it may leak back into your pool.

Has anybody replaced your sand and noticed it stopped leaking back into your pool?

Thanks,

Steve